GFS A Cappella
type: MusicGroup
popularity: 2
followers: 77
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xcf097e1f5fda295c95ff908e3968d862dc1254d5209c9e7ecef5b6ba91e57f7d
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954066
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954066
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/6a5c4163-21af-41fe-9950-d408edd70d26.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/6a5c4163-21af-41fe-9950-d408edd70d26.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/6a5c4163-21af-41fe-9950-d408edd70d26
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T08:11:48Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xcf097e1f5fda295c95ff908e3968d862dc1254d5209c9e7ecef5b6ba91e57f7d","name":"GFS A Cappella","registered_at":"2026-06-17T02:34:27Z","symbol":"NIM1253914","token_address":"0x280cd26d25f8eed2fb18102b266c8de12331d3b5","type":"artist","uuid":"6a5c4163-21af-41fe-9950-d408edd70d26"}
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 0xcf097e1f5fda295c95ff908e3968d862dc1254d5209c9e7ecef5b6ba91e57f7d. 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/6a5c4163-21af-41fe-9950-d408edd70d26.json and https://artists.proofprofile.net/proofs/artist/6a5c4163-21af-41fe-9950-d408edd70d26.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T08:11:48Z
  text: {"copyright_id":"0xcf097e1f5fda295c95ff908e3968d862dc1254d5209c9e7ecef5b6ba91e57f7d","name":"GFS A Cappella","registered_at":"2026-06-17T02:34:27Z","symbol":"NIM1253914","token_address":"0x280cd26d25f8eed2fb18102b266c8de12331d3b5","type":"artist","uuid":"6a5c4163-21af-41fe-9950-d408edd70d26"}
album: Resolution
  type: MusicAlbum
  date published: 2018-01-31
album: Flow
  type: MusicAlbum
  date published: 2023-02-20
album: Enlighten
  type: MusicAlbum
  date published: 2025-01-02