Cryptic Message in Dragonspine

Cryptic Message in Dragonspine (unofficial name) is a Hidden Exploration Objective that takes place in Dragonspine, Mondstadt. It involves finding the nine Record of Serial No. to unveil one last message.
See the lore section for the message and how it was obtained.
==Steps==
Interact with the nine buried ruin guards in the following locations, in any order:
# Record of Serial No. HU-16180 and Record of Serial No. GN/Hu-68513
#* On the South Eastern jutting out landmass.
#: 
HEO Record of Serial 01 Location.png|Location
Location Record of Serial No 1 Context.png|Additional context, HU-16180 on the left and GN/Hu-68513 on the right
# Record of Serial No. HU-21030 and Record of Serial No. HU-81122
#* In the cavern to the left of Snow-Covered Path's waypoint.
#: 
HEO Record of Serial 02 Location.png|Location
Location Record of Serial No 2 Context.png|Additional context, HU-21030 on the left and HU-81122 on the right
# Record of Serial No. HU-31122
#* On the western edge of a cliff near a Frostarm Lawachurl, on the landmass where the waypoint East of Starglow Cavern is situated.
#: 
HEO Record of Serial 03 Location.png|Location
Location Record of Serial No 3 Context.png|Additional context
# Record of Serial No. HU-42318
#* In the cavern below the Cryo Hypostasis, behind the metal bars.
#: 
HEO Record of Serial 04 Location.png|Location
Location Record of Serial No 4 Context.png|Additional context
# Record of Serial No. HU-57104
#* In the pit just west of the Dragonspine Statue of The Seven
#: 
HEO Record of Serial 05 Location.png|Location
Location Record of Serial No 5 Context.png|Additional context
# Record of Serial No. HU-73011
#* At the bottom of Starglow Cavern
#: 
HEO Record of Serial 06 Location.png|Location
Location Record of Serial No 6 Context.png|Additional context
# Record of Serial No. HU-96917
#* On a cliff at Entombed City - Outskirts
#: 
HEO Record of Serial 07 Location.png|Location
Location Record of Serial No 7 Context.png|Additional context
==Lore==
===Recordings===
:Record of Serial No. HU-16180: "3.2-..3-.23-.32-32.-3..-"
:Record of Serial No. HU-21030: "..2-223-.32-322-..3-..2-"
:Record of Serial No. HU-31122: "2.2-3..-232-223-..2-.32-"
:Record of Serial No. HU-42318: "3.2-..3-.23-3.3-..3-"
:Record of Serial No. HU-57104: ".32-32.-322-.3.-"
:Record of Serial No. GN/Hu-68513: ".3.-33.-22.-23.-..3-.23-..2-3..-"
:Record of Serial No. HU-73011: ".2.-..3-2.2-3..-.23-"
:Record of Serial No. HU-81122: "23.-.33-.32-2.2-3..-"
:Record of Serial No. HU-96917: "3.2-223-322-332-3..-233-"
===Deciphering===
# The messages are ordered by the serial number of the Ruin Guards in ascending order.
#* This is based on the observation that the first digit of all the serial numbers are unique, and can be ordered from 1 to 9.
# Dashes (-) separate the code into three-character strings.
#* For example, the first three-character string would be 
# , , and are converted into , , and respectively, based on the ternary (base 3) numeral system.
#* This is based on the observation that the highest three-digit number in ternary (222) is 26 in decimal, which is the number of letters in the English alphabet.
#* For example, becomes .
# Those ternary numbers are converted into decimal.
#* For example, converting the ternary number 201 into decimal, we get 2×32 + 0×31 + 1×30 = 19.
# These decimal numbers are converted into letters, where A=1, B=2, C=3, and so on.
#* For example, the decimal number 19 becomes .
# The resulting message is further decoded by applying the ROT13 cipher: replacing each letter with the 13th letter after it in the alphabet.
#* For example, the letter becomes .
==Gameplay Notes==
* Completing this Hidden Exploration Objective awards the .
* Though it might have been thought that the records somehow relate to the fall of Sal Vindagnyr and have some connection to Celestia and the Skyfrost Nail, Ruin Guards are in fact an invention of Khaenri'ah, so the record may instead refer to the fall of that civilization and have nothing to do with Dragonspine at all.
==Change History==
==Navigation==
ja:ドラゴンスパインの暗号メッセージ