The Male Choir of St. Petersburg
type: MusicGroup
genre: choral
description: The Male Choir of St Petersburg is a Russian choir that moved to the City of St Petersburg in the 18th century from Moscow. At the end of the 19th century, the choir numbered 90: 40 adults and 50 boy
popularity: 4
followers: 179
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x05089519fb18eedd2483e531a4bc62c65ac38510dc888bbcfd3617bf8be10b2d
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954065
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954065
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/555eafba-ab1f-44ac-b32b-16da0116b572.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/555eafba-ab1f-44ac-b32b-16da0116b572.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/555eafba-ab1f-44ac-b32b-16da0116b572
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T08:10:43Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x05089519fb18eedd2483e531a4bc62c65ac38510dc888bbcfd3617bf8be10b2d","name":"The Male Choir of St. Petersburg","registered_at":"2026-06-16T19:18:08Z","symbol":"NIM1149808","token_address":"0x4ff1050d0a5b9362e14f23882233d0fb3dfbd368","type":"artist","uuid":"555eafba-ab1f-44ac-b32b-16da0116b572"}
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 5. GET OTSVerificationAPI → pre-computed 6-check result from server 6. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05089519fb18eedd2483e531a4bc62c65ac38510dc888bbcfd3617bf8be10b2d. Chain 2 (Bitcoin): anchored in block 954066 (2026-06-17T08:11:48Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/555eafba-ab1f-44ac-b32b-16da0116b572.json and https://artists.proofprofile.net/proofs/artist/555eafba-ab1f-44ac-b32b-16da0116b572.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T08:11:48Z
  text: {"copyright_id":"0x05089519fb18eedd2483e531a4bc62c65ac38510dc888bbcfd3617bf8be10b2d","name":"The Male Choir of St. Petersburg","registered_at":"2026-06-16T19:18:08Z","symbol":"NIM1149808","token_address":"0x4ff1050d0a5b9362e14f23882233d0fb3dfbd368","type":"artist","uuid":"555eafba-ab1f-44ac-b32b-16da0116b572"}
album: The Male Choir of St. Petersburg
  type: MusicAlbum
  date published: 1999