Marcello Mayor
type: MusicGroup
popularity: 3
followers: 270
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xe89214619874af3cc5a266ff62f8ea167a20aebbf4641ce829db825b91629dac
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953909
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953909
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/184c6a2d-6283-48f1-bcd5-ea60f19b13f4.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/184c6a2d-6283-48f1-bcd5-ea60f19b13f4.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/184c6a2d-6283-48f1-bcd5-ea60f19b13f4
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T07:53:13Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xe89214619874af3cc5a266ff62f8ea167a20aebbf4641ce829db825b91629dac","name":"Marcello Mayor","registered_at":"2026-06-15T22:00:03Z","symbol":"NIM0844733","token_address":"0x45f8f8a30a1abc63b38dba98b030ca99f316f35b","type":"artist","uuid":"184c6a2d-6283-48f1-bcd5-ea60f19b13f4"}
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 0xe89214619874af3cc5a266ff62f8ea167a20aebbf4641ce829db825b91629dac. Chain 2 (Bitcoin): anchored in block 953909 (2026-06-16T07:53:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/184c6a2d-6283-48f1-bcd5-ea60f19b13f4.json and https://artists.proofprofile.net/proofs/artist/184c6a2d-6283-48f1-bcd5-ea60f19b13f4.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
  date published: 2026-06-16T07:53:13Z
  text: {"copyright_id":"0xe89214619874af3cc5a266ff62f8ea167a20aebbf4641ce829db825b91629dac","name":"Marcello Mayor","registered_at":"2026-06-15T22:00:03Z","symbol":"NIM0844733","token_address":"0x45f8f8a30a1abc63b38dba98b030ca99f316f35b","type":"artist","uuid":"184c6a2d-6283-48f1-bcd5-ea60f19b13f4"}
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