MARCE DR
type: MusicGroup
popularity: 4
followers: 1
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x9ffe1e3cd7772c8f877704a3543eb2103b05b78a8e1fe3f4ef6ab66d309b2a37
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953999
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953999
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/31df5b7d-98c4-4d95-904f-bac93993292a.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/31df5b7d-98c4-4d95-904f-bac93993292a.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/31df5b7d-98c4-4d95-904f-bac93993292a
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T20:20:58Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x9ffe1e3cd7772c8f877704a3543eb2103b05b78a8e1fe3f4ef6ab66d309b2a37","name":"MARCE DR","registered_at":"2026-06-16T06:52:55Z","symbol":"NIM0971989","token_address":"0xc83b94f2dccc65ee75ec5d0e199cc99beee2c0c8","type":"artist","uuid":"31df5b7d-98c4-4d95-904f-bac93993292a"}
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 0x9ffe1e3cd7772c8f877704a3543eb2103b05b78a8e1fe3f4ef6ab66d309b2a37. Chain 2 (Bitcoin): anchored in block 954000 (2026-06-16T20:18:46Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/31df5b7d-98c4-4d95-904f-bac93993292a.json and https://artists.proofprofile.net/proofs/artist/31df5b7d-98c4-4d95-904f-bac93993292a.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-16T20:18:46Z
  text: {"copyright_id":"0x9ffe1e3cd7772c8f877704a3543eb2103b05b78a8e1fe3f4ef6ab66d309b2a37","name":"MARCE DR","registered_at":"2026-06-16T06:52:55Z","symbol":"NIM0971989","token_address":"0xc83b94f2dccc65ee75ec5d0e199cc99beee2c0c8","type":"artist","uuid":"31df5b7d-98c4-4d95-904f-bac93993292a"}