Sunday Mar
type: MusicGroup
popularity: 2
followers: 5
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x2a558bc204c5a74c1c988a273ae42e57daf5c9b0064c52f2a4f1b5bbafa08487
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954631
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954631
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/d139d5ee-88c9-4d0b-ada2-81d2e2b90960.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/d139d5ee-88c9-4d0b-ada2-81d2e2b90960.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/d139d5ee-88c9-4d0b-ada2-81d2e2b90960
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-21T02:46:24Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x2a558bc204c5a74c1c988a273ae42e57daf5c9b0064c52f2a4f1b5bbafa08487","name":"Sunday Mar","registered_at":"2026-06-21T01:10:03Z","symbol":"NIM1773223","token_address":"0xe361ae142b34939d761a66317853e0bcae5e3ace","type":"artist","uuid":"d139d5ee-88c9-4d0b-ada2-81d2e2b90960"}
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 0x2a558bc204c5a74c1c988a273ae42e57daf5c9b0064c52f2a4f1b5bbafa08487. Chain 2 (Bitcoin): anchored in block 954631 (2026-06-21T02:46:24Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/d139d5ee-88c9-4d0b-ada2-81d2e2b90960.json and https://artists.proofprofile.net/proofs/artist/d139d5ee-88c9-4d0b-ada2-81d2e2b90960.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-21T02:46:24Z
  text: {"copyright_id":"0x2a558bc204c5a74c1c988a273ae42e57daf5c9b0064c52f2a4f1b5bbafa08487","name":"Sunday Mar","registered_at":"2026-06-21T01:10:03Z","symbol":"NIM1773223","token_address":"0xe361ae142b34939d761a66317853e0bcae5e3ace","type":"artist","uuid":"d139d5ee-88c9-4d0b-ada2-81d2e2b90960"}
album: Just Jesus
  type: MusicAlbum
  date published: 2024-08-23