cometadata/datacite-titles-descriptions-related-identifiers huggingface dataset:
DOI: 10.15468/dl.zv8p4u
title: Occurrence Download

description: A dataset containing 356 species occurrences available in GBIF matching the query:
{
 "and" : [
 "GadmGid is CHN.29_1",
 "HasCoordinate is true",
 "HasGeospatialIssue is false",
 "OccurrenceStatus is Present",
 "TaxonKey is Ichthyaetus ichthyaetus"
 ]
}

 The dataset includes 356 records from 4 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0000881-260221153910048/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.25549/annis-ouc17133460
title: San José Convent and Santa Teresa la Antigua Temple, Mexico City, Mexico, 1933

description: Built for the convent of Santa Teresa la Antigua and the monastery of San José de las Carmelitas Descalzas, the San José Convent and Santa Teresa la Antigua Temple, later the Museo Ex Teresa Arte Actual Mexico City, Distrito Federal, Mexico, 1933.
DOI: 10.25549/annis-ouc17129953
title: Convento de la Concepción, Mexico City, Mexico, 1936

description: El Convento de la Concepción, a 17th-century conceptionist convent with only the church and cloister remaining, Mexico City, Distrito Federal, Mexico, 1936 July 1.
DOI: 10.25549/annis-ouc17128058
title: Capilla de la Concepción Cuepopan, Mexico City, Mexico, 1933

description: A chapel in the plaza opposite El Convento de la Concepción, Mexico City, Mexico, 1933.
DOI: 10.25549/annis-ouc17129074
title: San Martín Texmelucan de Labastida, Puebla, Mexico, 1933

description: A marketplace in San Martín Texmelucan de Labastida, in the west-central part of the state of Puebla, Mexico, 1933.
DOI: 10.25549/annis-ouc17132720
title: San Martín Texmelucan de Labastida, Puebla, Mexico, 1933

description: A marketplace in San Martín Texmelucan de Labastida, in the west-central part of the state of Puebla, Mexico, 1933.
DOI: 10.25549/annis-ouc17090562
title: Oxen and ox cart at a ford, near Mitla, Oaxaca, Mexico, 1936

description: Oxen, driver, and ox cart, with people waiting to be ferried across a river at a ford, near Mitla, Oaxaca, Mexico, 1936 July 17.
DOI: 10.25549/annis-ouc17129253
title: Oxen and ox cart at a ford, near Mitla, Oaxaca, Mexico, 1936

description: Oxen, driver, and ox cart, with people waiting to be ferried across a river at a ford, near Mitla, Oaxaca, Mexico, 1936 July 17.
DOI: 10.25549/annis-ouc17127473
title: Oxen and ox cart at a ford, near Mitla, Oaxaca, Mexico, 1936

description: Oxen, driver, and ox cart, with people waiting to be ferried across a river at a ford, near Mitla, Oaxaca, Mexico, 1936 July 17.
DOI: 10.25549/annis-ouc17128980
title: Oxen and ox cart at a ford, near Mitla, Oaxaca, Mexico, 1936

description: Oxen, driver, and ox cart, with people waiting to be ferried across a river at a ford, near Mitla, Oaxaca, Mexico, 1936 July 17.
DOI: 10.25549/annis-ouc17090228
title: Oxen and ox cart at a ford, near Mitla, Oaxaca, Mexico, 1936

description: Oxen, driver, and ox cart, with people waiting to be ferried across a river at a ford, near Mitla, Oaxaca, Mexico, 1936 July 17.
DOI: 10.25549/annis-ouc17133637
title: Pottery market and street scene, Oaxaca, Mexico, 1936

description: Under shelters and exposed, pottery spread out at ground level, hung, and in baskets for people passing by to see, and in one image people walking in a street, Oaxaca, Oaxaca, Mexico, 1936, July 18.
DOI: 10.25549/annis-ouc17131345
title: Pottery market and street scene, Oaxaca, Mexico, 1936

description: Under shelters and exposed, pottery spread out at ground level, hung, and in baskets for people passing by to see, and in one image people walking in a street, Oaxaca, Oaxaca, Mexico, 1936, July 18.
DOI: 10.25549/annis-ouc17129561
title: Pottery market and street scene, Oaxaca, Mexico, 1936

description: Under shelters and exposed, pottery spread out at ground level, hung, and in baskets for people passing by to see, and in one image people walking in a street, Oaxaca, Oaxaca, Mexico, 1936, July 18.
DOI: 10.25549/annis-ouc17133457
title: Pottery market and street scene, Oaxaca, Mexico, 1936

description: Under shelters and exposed, pottery spread out at ground level, hung, and in baskets for people passing by to see, and in one image people walking in a street, Oaxaca, Oaxaca, Mexico, 1936, July 18.
DOI: 10.25549/annis-ouc17128219
title: Oaxaca Market, Oaxaca, Mexico, 1936

description: Oxen, ox carts, burros, people, and goods for sale inside and outside a high-walled open-air market in Oaxaca, Oaxaca, Mexico, 1936
DOI: 10.25549/annis-ouc17089735
title: Oaxaca Market, Oaxaca, Mexico, 1936

description: Oxen, ox carts, burros, people, and goods for sale inside and outside a high-walled open-air market in Oaxaca, Oaxaca, Mexico, 1936
DOI: 10.25549/annis-ouc17127119
title: Catedral de Azcapotzalco, Mexico City, Mexico, 1933

description: The Catedral de Azcapotzalco, Mexico City, Distrito Federal, Mexico, 1933.
DOI: 10.25549/annis-ouc17129323
title: Bullfight at the Toreo de la Condesa, Mexico City, Mexico, 1936

description: A bullfight at the old (pre-1946) bullring, the Toreo de Condesa, Mexico City, Distrito Federal, Mexico, 1936 July 25.
DOI: 10.25549/annis-ouc17130062
title: Bullfight at the Toreo de la Condesa, Mexico City, Mexico, 1936

description: A bullfight at the old (pre-1946) bullring, the Toreo de Condesa, Mexico City, Distrito Federal, Mexico, 1936 July 25.
DOI: 10.25549/annis-ouc17131939
title: Bullfight at the Toreo de la Condesa, Mexico City, Mexico, 1936

description: A bullfight at the old (pre-1946) bullring, the Toreo de Condesa, Mexico City, Distrito Federal, Mexico, 1936 July 25.
DOI: 10.25549/annis-ouc17127917
title: Bullfight at the Toreo de la Condesa, Mexico City, Mexico, 1936

description: A bullfight at the old (pre-1946) bullring, the Toreo de Condesa, Mexico City, Distrito Federal, Mexico, 1936 July 25.
DOI: 10.25549/annis-ouc17128131
title: Oaxaca Market, people selling woven mats, baskets, and rope, Oaxaca, Mexico, 1936

description: People at the Oaxaca market display their woven wares on the ground, with and without shelter, Oaxaca, Oaxaca, Mexico, 1936 July 18.
DOI: 10.25549/annis-ouc17129085
title: Oaxaca Market, people selling woven mats, baskets, and rope, Oaxaca, Mexico, 1936

description: People at the Oaxaca market display their woven wares on the ground, with and without shelter, Oaxaca, Oaxaca, Mexico, 1936 July 18.
DOI: 10.25549/annis-ouc17131541
title: Oaxaca Market, people selling woven mats, baskets, and rope, Oaxaca, Mexico, 1936

description: People at the Oaxaca market display their woven wares on the ground, with and without shelter, Oaxaca, Oaxaca, Mexico, 1936 July 18.
DOI: 10.25549/annis-ouc17089486
title: Oaxaca Market, people selling woven mats, baskets, and rope, Oaxaca, Mexico, 1936

description: People at the Oaxaca market display their woven wares on the ground, with and without shelter, Oaxaca, Oaxaca, Mexico, 1936 July 18.
DOI: 10.25549/annis-ouc17128048
title: Mercado Riva Palacio, Toluca, Mexico, 1936

description: Scenes of an open-air public market in Toluca, named after a governor of the State of Mexico, Riva Palacio, Toluca, Mexico, Mexico, 1936 July 24.
DOI: 10.25549/annis-ouc17089762
title: Mercado Riva Palacio, Toluca, Mexico, 1936

description: Scenes of an open-air public market in Toluca, named after a governor of the State of Mexico, Riva Palacio, Toluca, Mexico, Mexico, 1936 July 24.
DOI: 10.25549/annis-ouc17133448
title: Market in San Martín Texmelucan de Labastida, Mexico, 1933

description: An open-air market in San Martín Texmelucan de Labastida, Puebla, Mexico, 1933.
DOI: 10.25549/annis-ouc17128999
title: Flower market near San Juan de Dios church, Mexico City, Mexico, 1933

description: A flower market including flower arrangements near the San Juan de Dios Church, Mexico City, Distrito Federal, Mexico, 1933.
DOI: 10.25549/annis-ouc17129254
title: Flower market near San Juan de Dios, Mexico City, Mexico, 1936

description: A flower market including flower arrangements near the San Juan de Dios Church, Mexico City, Distrito Federal, Mexico, 1936 July 25.
DOI: 10.25549/annis-ouc17129418
title: Flower market near San Juan de Dios, Mexico City, Mexico, 1936

description: A flower market including flower arrangements near the San Juan de Dios Church, Mexico City, Distrito Federal, Mexico, 1936 July 25.
DOI: 10.25549/annis-ouc17130027
title: Mercado Riva Palacio, Toluca, Mexico, 1936

description: Scenes of an open-air public market in Toluca, named after a governor of the State of Mexico, Riva Palacio, Toluca, Mexico, Mexico, 1936 July 24.
DOI: 10.25549/annis-ouc17131318
title: Mercado Riva Palacio, Toluca, Mexico, 1936

description: Scenes of an open-air public market in Toluca, named after a governor of the State of Mexico, Riva Palacio, Toluca, Mexico, Mexico, 1936 July 24.
DOI: 10.15468/dl.vkdjbt
title: Occurrence Download

description: A dataset containing 2678 species occurrences available in GBIF matching the query:
{
 "and" : [
 "Country is Canada",
 "HasCoordinate is true",
 "HasGeospatialIssue is false",
 "OccurrenceStatus is Present",
 "TaxonKey is one of (Sistrurus catenatus, Sistrurus catenatus tergeminus, Sistrurus catenatus catenatus, Sistrurus catenatus edwardsii)"
 ]
}

 The dataset includes 2678 records from 13 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0000882-260221153910048/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.25549/annis-ouc17127730
title: Mercado Riva Palacio, Toluca, Mexico, 1936

description: Scenes of an open-air public market in Toluca, named after a governor of the State of Mexico, Riva Palacio, Toluca, Mexico, Mexico, 1936 July 24.
DOI: 10.25549/annis-ouc17090824
title: Market, Cuernavaca, Mexico, 1933

description: A market in Cuernavaca, Morelos, Mexico, 1933.
DOI: 10.25549/annis-ouc17087099
title: Market in San Martín Texmelucan de Labastida, Mexico, 1933

description: An open-air market in San Martín Texmelucan de Labastida, Puebla, Mexico, 1933.
DOI: 10.25549/annis-ouc17089777
title: Templo de Santa Teresa la Nueva, Mexico City, Mexico, 1933

description: Church with side-by-side façades marking it as a former convent, Mexico City, Distrito Federal, Mexico, 1933.
DOI: 10.25549/annis-ouc17130892
title: Nuestra Señora de Loreto Church, Mexico City, Mexico, 1933

description: Views of Nuestra Señora de Loreto Church, showing façade, bell towers, and dome, Mexico City, Distrito Federal, Mexico, 1933.
DOI: 10.25549/annis-ouc17131444
title: Catedral de Azcapotzalco, Mexico City, Mexico, 1936

description: The Catedral de Azcapotzalco, Mexico City, Distrito Federal, Mexico, 1936 June 25.
DOI: 10.25549/annis-ouc17129598
title: Catedral de Azcapotzalco, Mexico City, Mexico, 1936

description: The Catedral de Azcapotzalco, Mexico City, Distrito Federal, Mexico, 1936 June 25.
DOI: 10.25549/annis-ouc17131544
title: Catedral de Azcapotzalco, Mexico City, Mexico, 1936

description: The Catedral de Azcapotzalco, Mexico City, Distrito Federal, Mexico, 1936 June 25.
DOI: 10.25549/annis-ouc17089742
title: "Native of Taxco," Taxco, Mexico, 1936

description: A donkey standing on a patio overlooking the roof of another dwelling, Taxco, Guerrero, Mexico, 1936 July 12.
DOI: 10.25549/annis-ouc17091193
title: "Native of Taxco," Taxco, Mexico, 1936

description: A donkey standing on a patio overlooking the roof of another dwelling, Taxco, Guerrero, Mexico, 1936 July 12.
DOI: 10.25549/annis-ouc17131630
title: Flower market near San Juan de Dios, Mexico City, Mexico, 1936

description: A flower market including flower arrangements near the San Juan de Dios Church, Mexico City, Distrito Federal, Mexico, 1936 July 25.
DOI: 10.25549/annis-ouc17133418
title: Flower market near San Juan de Dios, Mexico City, Mexico, 1936

description: A flower market including flower arrangements near the San Juan de Dios Church, Mexico City, Distrito Federal, Mexico, 1936 July 25.
DOI: 10.25549/annis-ouc17127985
title: Templo de Santa Teresa la Nueva, Mexico City, Mexico, 1933

description: Church with side-by-side façades marking it as a former convent, Mexico City, Distrito Federal, Mexico, 1933.
DOI: 10.25549/annis-ouc17129655
title: Details of citarillos, Taxco, Mexico, 1933 & 1936

description: Openwork masonry at homes in Taxco, Guerrero, Mexico, 1933 and 1936 July 22 and 23.
DOI: 10.25549/annis-ouc17088985
title: Wall details, Mexico, 1933 & 1936

description: Openwork masonry on walls in Mexico, 1933 and 1936 June 27.
DOI: 10.25549/annis-ouc17133480
title: "Typical citarillos," Taxco, Mexico, 1933 & 1936

description: Openwork masonry at homes in Taxco, Mexico, 1933 and 1936 July 12 and 23.
DOI: 10.25549/annis-ouc17132086
title: "Typical citarillos," Taxco, Mexico, 1933 & 1936

description: Openwork masonry at homes in Taxco, Mexico, 1933 and 1936 July 12 and 23.
DOI: 10.25549/annis-ouc17130733
title: Detail of citarillos, Taxco, Mexico, 1933 & 1936

description: Openwork masonry at homes in Taxco, Mexico, 1933 and 1936 July 23.
DOI: 10.25549/annis-ouc17132888
title: Nuestra Señora de Loreto Church, Mexico City, Mexico, 1933

description: Views of Nuestra Señora de Loreto Church, showing façade, bell towers, and dome, Mexico City, Distrito Federal, Mexico, 1933.
DOI: 10.25549/annis-ouc17128134
title: Catedral de Azcapotzalco, Mexico City, Mexico, 1933

description: Walls, a gate, doors, colonnades, and a niche in a wall at the Catedral de Azcapotzalco, Mexico City, Distrito Federal, Mexico, 1933.
DOI: 10.25549/annis-ouc17127468
title: Catedral de Azcapotzalco, Mexico City, Mexico, 1933

description: Walls, a gate, doors, colonnades, and a niche in a wall at the Catedral de Azcapotzalco, Mexico City, Distrito Federal, Mexico, 1933.
DOI: 10.25549/annis-ouc17128011
title: Catedral de Azcapotzalco, Mexico City, Mexico, 1933

description: Walls, a gate, doors, colonnades, and a niche in a wall at the Catedral de Azcapotzalco, Mexico City, Distrito Federal, Mexico, 1933.
DOI: 10.25549/annis-ouc17128504
title: Catedral de Azcapotzalco, Mexico City, Mexico, 1936

description: The Catedral de Azcapotzalco, Mexico City, Distrito Federal, Mexico, 1936 June 25.
DOI: 10.25549/annis-ouc17090809
title: San José Convent and Santa Teresa la Antigua Temple, Mexico City, Mexico, 1933

description: Built for the convent of Santa Teresa la Antigua and the monastery of San José de las Carmelitas Descalzas, the San José Convent and Santa Teresa la Antigua Temple, later the Museo Ex Teresa Arte Actual Mexico City, Distrito Federal, Mexico, 1933.
DOI: 10.25549/annis-ouc17129609
title: The Chapel of the Immaculate Conception at Salto del Agua, Mexico City, Mexico, 1933

description: La Capilla de la Inmaculada Concepción Salto del Agua, built by the Brotherhood of the Conception in the 18th century, Mexico City, Distrito Federal, Mexico, 1933.
DOI: 10.25549/annis-ouc17088493
title: The Chapel of the Immaculate Conception at Salto del Agua, Mexico City, Mexico, 1933

description: La Capilla de la Inmaculada Concepción Salto del Agua, built by the Brotherhood of the Conception in the 18th century, Mexico City, Distrito Federal, Mexico, 1933.
DOI: 10.25549/annis-ouc17128211
title: Convent of San Jerónimo, Mexico City, Mexico, 1933

description: Originally founded as the Convent of Our Lady of Expectation, the Convent of San Jerónimo, later acquired by the University of the Cloister of Sor Juana, Mexico City, Distrito Federal, Mexico, 1933.
DOI: 10.25549/annis-ouc17133509
title: Niches for statues on buildings, Mexico City, Mexico, 1936

description: Niches on corners of buildings with statues of saints, of varying sizes and degrees of ornateness, Mexico City, Distrito Federal, Mexico, 1936 June 27.
DOI: 10.25549/annis-ouc17131350
title: Catedral de Azcapotzalco, Mexico City, Mexico, 1936

description: The Catedral de Azcapotzalco, Mexico City, Distrito Federal, Mexico, 1936 June 25.
DOI: 10.25549/annis-ouc17090974
title: Catedral de Azcapotzalco, Mexico City, Mexico, 1936

description: The Catedral de Azcapotzalco, Mexico City, Distrito Federal, Mexico, 1936 June 25.
DOI: 10.25549/annis-ouc17133470
title: Catedral de Azcapotzalco, Mexico City, Mexico, 1933

description: The Catedral de Azcapotzalco, Mexico City, Distrito Federal, Mexico, 1933.
DOI: 10.15468/dl.ccbaut
title: Occurrence Download

description: A dataset containing 17 species occurrences available in GBIF matching the query:
{
 "and" : [
 "Country is Colombia",
 "DatasetKey is one of (Línea base general de mariposas para el valle medio del Magdalena - VMM, Colección de Entomología del Instituto de Investigación de Recursos Biológicos Alexander von Humboldt (IAvH-E), Mariposas de la expedición al Río Apaporis - Proyecto Colombia BIO, eButterfly Surveys)",
 "HasCoordinate is true",
 "HasGeospatialIssue is false",
 "PublishingOrg is one of (2a7e3080-28a9-11dd-97cd-b8a03c50a862, 9d77fdeb-100f-4b29-98ad-4effdd824457, b6d09100-919d-4026-b35b-22be3dae7156)",
 "TaxonKey is Conga chydaea"
 ]
}

 The dataset includes 17 records from 4 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0000883-260221153910048/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.25549/annis-ouc17128020
title: Bullfight at the Toreo de la Condesa, Mexico City, Mexico, 1936

description: A bullfight at the old (pre-1946) bullring, the Toreo de Condesa, Mexico City, Distrito Federal, Mexico, 1936 July 25.
DOI: 10.25549/annis-ouc17132071
title: Bullfight at the Toreo de la Condesa, Mexico City, Mexico, 1936

description: A bullfight at the old (pre-1946) bullring, the Toreo de Condesa, Mexico City, Distrito Federal, Mexico, 1936 July 25.
DOI: 10.25549/annis-ouc17090579
title: Bullfight at the Toreo de la Condesa, Mexico City, Mexico, 1936

description: A bullfight at the old (pre-1946) bullring, the Toreo de Condesa, Mexico City, Distrito Federal, Mexico, 1936 July 25.
DOI: 10.25549/annis-ouc17088988
title: Bullfight at the Toreo de la Condesa, Mexico City, Mexico, 1936

description: A bullfight at the old (pre-1946) bullring, the Toreo de Condesa, Mexico City, Distrito Federal, Mexico, 1936 July 25.
DOI: 10.25549/annis-ouc17131430
title: Bullfight at the Toreo de la Condesa, Mexico City, Mexico, 1936

description: A bullfight at the old (pre-1946) bullring, the Toreo de Condesa, Mexico City, Distrito Federal, Mexico, 1936 June 28.
DOI: 10.25549/annis-ouc17129954
title: Tenayuca Pyramid, Tlalnepantla de Baz, Mexico, 1936

description: Pre-Columbian Mesoamerican archeological site with an Aztec pyramid and other structures in the Valley of Mexico, Tlalnepantla de Baz, Mexico, Mexico, photographed 1936 June 25.
DOI: 10.25549/annis-ouc17131653
title: Tenayuca Pyramid, Tlalnepantla de Baz, Mexico, 1936

description: Pre-Columbian Mesoamerican archeological site with an Aztec pyramid and other structures in the Valley of Mexico, Tlalnepantla de Baz, Mexico, Mexico, photographed 1936 June 25.
DOI: 10.25549/annis-ouc17127963
title: Tenayuca Pyramid, Tlalnepantla de Baz, Mexico, 1936

description: Pre-Columbian Mesoamerican archeological site with an Aztec pyramid and other structures in the Valley of Mexico, Tlalnepantla de Baz, Mexico, Mexico, photographed 1936 June 25.
DOI: 10.25549/annis-ouc17090838
title: Tenayuca Pyramid, Tlalnepantla de Baz, Mexico, 1936

description: Pre-Columbian Mesoamerican archeological site with an Aztec pyramid and other structures in the Valley of Mexico, Tlalnepantla de Baz, Mexico, Mexico, photographed 1936 June 25.
DOI: 10.25549/annis-ouc17132368
title: Tenayuca Pyramid, Tlalnepantla de Baz, Mexico, 1936

description: Pre-Columbian Mesoamerican archeological site with an Aztec pyramid and other structures in the Valley of Mexico, Tlalnepantla de Baz, Mexico, Mexico, 1936 June 25.
DOI: 10.25549/annis-ouc17133046
title: Tenayuca Pyramid, Tlalnepantla de Baz, Mexico, 1936

description: Pre-Columbian Mesoamerican archeological site with an Aztec pyramid and other structures in the Valley of Mexico, Tlalnepantla de Baz, Mexico, Mexico, 1936 June 25.
DOI: 10.5281/zenodo.18728605
title: CCR Core Release v1.1.2b: Canonical Empirical Relaxation Observable (Historical Reproducibility Artifact)

description: Canonical Core Release v1.1.2b

This record preserves a historically defined empirical relaxation observable for disk galaxies together with its fully reproducible reference implementation.

The primary observable is the dimensionless parameter η, defined as:

η = V_obs(2.5 kpc) / V_CDM(2.5 kpc)

evaluated at a fixed physical radius r₀ = 2.5 kpc.

η is strictly empirical and model-agnostic. It does not encode dark-matter microphysics, scattering rates, cross sections, or particle-physics parameters. It functions solely as an ordering parameter for inner galaxy dynamics.

This release provides:





formal machine-readable observable definitions




the canonical dataset used in this version




a deterministic analysis pipeline




explicit uncertainty propagation




integrity hashes for long-term verification



This record is published as a historical and reproducibility artifact.It freezes the computational state of the observable at the time of release.

Portions of the development workflow (e.g. refactoring, packaging, documentation structuring) were assisted by large language model (LLM) tools. All numerical computations and statistical procedures are fully specified in the released source code and are independently reproducible without LLM involvement at runtime.

Supporting analytical papers explore and test the observable but do not redefine the canonical definition preserved here.

Citation:“As defined in Riolo (2026).”
DOI: 10.25549/annis-ouc17133604
title: Tenayuca Pyramid, Tlalnepantla de Baz, Mexico, 1936

description: Pre-Columbian Mesoamerican archeological site with an Aztec pyramid and other structures in the Valley of Mexico, Tlalnepantla de Baz, Mexico, Mexico, photographed 1936 June 25.
DOI: 10.5281/zenodo.18728604
title: CCR Core Release v1.1.2b: Canonical Empirical Relaxation Observable (Historical Reproducibility Artifact)

description: Canonical Core Release v1.1.2b

This record preserves a historically defined empirical relaxation observable for disk galaxies together with its fully reproducible reference implementation.

The primary observable is the dimensionless parameter η, defined as:

η = V_obs(2.5 kpc) / V_CDM(2.5 kpc)

evaluated at a fixed physical radius r₀ = 2.5 kpc.

η is strictly empirical and model-agnostic. It does not encode dark-matter microphysics, scattering rates, cross sections, or particle-physics parameters. It functions solely as an ordering parameter for inner galaxy dynamics.

This release provides:





formal machine-readable observable definitions




the canonical dataset used in this version




a deterministic analysis pipeline




explicit uncertainty propagation




integrity hashes for long-term verification



This record is published as a historical and reproducibility artifact.It freezes the computational state of the observable at the time of release.

Portions of the development workflow (e.g. refactoring, packaging, documentation structuring) were assisted by large language model (LLM) tools. All numerical computations and statistical procedures are fully specified in the released source code and are independently reproducible without LLM involvement at runtime.

Supporting analytical papers explore and test the observable but do not redefine the canonical definition preserved here.

Citation:“As defined in Riolo (2026).”
DOI: 10.25549/annis-ouc17131372
title: Niches for statues on buildings, Mexico City, Mexico, 1936

description: Niches on corners of buildings with statues of saints, of varying sizes and degrees of ornateness, Mexico City, Distrito Federal, Mexico, 1936 June 27.
DOI: 10.25549/annis-ouc17127187
title: Niches for statues on buildings, Mexico City, Mexico, 1936

description: Niches on corners of buildings with statues of saints, of varying sizes and degrees of ornateness, Mexico City, Distrito Federal, Mexico, 1936 June 27.