Change of Heart
type: MusicGroup
genre: album rock
genre: arena rock
popularity: 2
followers: 172
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x2ef5e134845a0f3d8dcc951c813bf5d2a04742710cd84d4ce586cfbdb41dce6e
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954553
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954553
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/ac361808-568d-47d1-a6b4-cca7bd2a1d77.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/ac361808-568d-47d1-a6b4-cca7bd2a1d77.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/ac361808-568d-47d1-a6b4-cca7bd2a1d77
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-20T11:51:30Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x2ef5e134845a0f3d8dcc951c813bf5d2a04742710cd84d4ce586cfbdb41dce6e","name":"Change of Heart","registered_at":"2026-06-20T10:00:15Z","symbol":"NIM1587081","token_address":"0xdd587402d7a10b2cbc9c2514cf3424baf869584c","type":"artist","uuid":"ac361808-568d-47d1-a6b4-cca7bd2a1d77"}
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 0x2ef5e134845a0f3d8dcc951c813bf5d2a04742710cd84d4ce586cfbdb41dce6e. Chain 2 (Bitcoin): anchored in block 954553 (2026-06-20T11:51:30Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/ac361808-568d-47d1-a6b4-cca7bd2a1d77.json and https://artists.proofprofile.net/proofs/artist/ac361808-568d-47d1-a6b4-cca7bd2a1d77.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-20T11:51:30Z
  text: {"copyright_id":"0x2ef5e134845a0f3d8dcc951c813bf5d2a04742710cd84d4ce586cfbdb41dce6e","name":"Change of Heart","registered_at":"2026-06-20T10:00:15Z","symbol":"NIM1587081","token_address":"0xdd587402d7a10b2cbc9c2514cf3424baf869584c","type":"artist","uuid":"ac361808-568d-47d1-a6b4-cca7bd2a1d77"}
album: Continuum
  type: MusicAlbum
  date published: 2016-08-19
album: Last Tiger
  type: MusicAlbum
  date published: 2024-02-09
album: Truth or Dare
  type: MusicAlbum
  date published: 2024-02-09
album: Change of Heart
  type: MusicAlbum
  date published: 2024-02-09