Holden Fincher
type: MusicGroup
popularity: 6
followers: 17
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xa5e70afc9cfc515e3b2495c4940423ff9a22715e51ee0ccd2aa4aa373a0f6392
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953968
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953968
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/291c7129-86f9-43e3-9241-130f4f116eaf.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/291c7129-86f9-43e3-9241-130f4f116eaf.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/291c7129-86f9-43e3-9241-130f4f116eaf
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T16:01:49Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xa5e70afc9cfc515e3b2495c4940423ff9a22715e51ee0ccd2aa4aa373a0f6392","name":"Holden Fincher","registered_at":"2026-06-16T03:46:43Z","symbol":"NIM0927513","token_address":"0x849c4cd958a5de4e7b2d0ae0b31a63e3e62841f4","type":"artist","uuid":"291c7129-86f9-43e3-9241-130f4f116eaf"}
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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5e70afc9cfc515e3b2495c4940423ff9a22715e51ee0ccd2aa4aa373a0f6392. Chain 2 (Bitcoin): anchored in block 953968 (2026-06-16T16:01:49Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/291c7129-86f9-43e3-9241-130f4f116eaf.json and https://artists.proofprofile.net/proofs/artist/291c7129-86f9-43e3-9241-130f4f116eaf.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-16T16:01:49Z
  text: {"copyright_id":"0xa5e70afc9cfc515e3b2495c4940423ff9a22715e51ee0ccd2aa4aa373a0f6392","name":"Holden Fincher","registered_at":"2026-06-16T03:46:43Z","symbol":"NIM0927513","token_address":"0x849c4cd958a5de4e7b2d0ae0b31a63e3e62841f4","type":"artist","uuid":"291c7129-86f9-43e3-9241-130f4f116eaf"}