Welsh Male Choir
type: MusicGroup
popularity: 8
followers: 259
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x813f957216d8367ac85e47ca9956ec86c5834a076989f5d9c0706468e44e8343
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954342
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954342
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/916755dd-6343-44d4-8b9c-678d1163184c.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/916755dd-6343-44d4-8b9c-678d1163184c.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/916755dd-6343-44d4-8b9c-678d1163184c
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-19T03:22:39Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x813f957216d8367ac85e47ca9956ec86c5834a076989f5d9c0706468e44e8343","name":"Welsh Male Choir","registered_at":"2026-06-17T16:25:56Z","symbol":"NIM1452194","token_address":"0x919a0dc1e24239cb15999f8247f919734782102f","type":"artist","uuid":"916755dd-6343-44d4-8b9c-678d1163184c"}
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 0x813f957216d8367ac85e47ca9956ec86c5834a076989f5d9c0706468e44e8343. Chain 2 (Bitcoin): anchored in block 954342 (2026-06-19T03:22:39Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/916755dd-6343-44d4-8b9c-678d1163184c.json and https://artists.proofprofile.net/proofs/artist/916755dd-6343-44d4-8b9c-678d1163184c.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-19T03:22:39Z
  text: {"copyright_id":"0x813f957216d8367ac85e47ca9956ec86c5834a076989f5d9c0706468e44e8343","name":"Welsh Male Choir","registered_at":"2026-06-17T16:25:56Z","symbol":"NIM1452194","token_address":"0x919a0dc1e24239cb15999f8247f919734782102f","type":"artist","uuid":"916755dd-6343-44d4-8b9c-678d1163184c"}
album: How Great Thou Art
  type: MusicAlbum
  date published: 2012-11-05
album: Remastered Classics, Vol. 246, Welsh Male Choir Sings Gershwin
  type: MusicAlbum
  date published: 2022-10-28