Marc Andurell
type: MusicGroup
popularity: 3
followers: 220
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xc7d530db4b850a0f336890fcdb333d7ba7bfc3b940e7d8ef7b62438db652771d
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953882
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953882
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/0a5ea430-bf69-4382-94ed-e21a00d94ead.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/0a5ea430-bf69-4382-94ed-e21a00d94ead.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/0a5ea430-bf69-4382-94ed-e21a00d94ead
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T03:13:34Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xc7d530db4b850a0f336890fcdb333d7ba7bfc3b940e7d8ef7b62438db652771d","name":"Marc Andurell","registered_at":"2026-06-15T17:07:23Z","symbol":"NIM0774937","token_address":"0x74314edbb4cd5a955f6e032ae134df9aac8c23b7","type":"artist","uuid":"0a5ea430-bf69-4382-94ed-e21a00d94ead"}
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 0xc7d530db4b850a0f336890fcdb333d7ba7bfc3b940e7d8ef7b62438db652771d. Chain 2 (Bitcoin): anchored in block 953882 (2026-06-16T03:13:34Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/0a5ea430-bf69-4382-94ed-e21a00d94ead.json and https://artists.proofprofile.net/proofs/artist/0a5ea430-bf69-4382-94ed-e21a00d94ead.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
  date published: 2026-06-16T03:13:34Z
  text: {"copyright_id":"0xc7d530db4b850a0f336890fcdb333d7ba7bfc3b940e7d8ef7b62438db652771d","name":"Marc Andurell","registered_at":"2026-06-15T17:07:23Z","symbol":"NIM0774937","token_address":"0x74314edbb4cd5a955f6e032ae134df9aac8c23b7","type":"artist","uuid":"0a5ea430-bf69-4382-94ed-e21a00d94ead"}
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  type: MusicAlbum
  date published: 2022-09-23
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  type: MusicAlbum
  date published: 2022-09-23
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  type: MusicAlbum
  date published: 2023-05-12
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  type: MusicAlbum
  date published: 2023-05-12
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  type: MusicAlbum
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  type: MusicAlbum
  date published: 2024-03-01
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  type: MusicAlbum
  date published: 2024-06-21
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  type: MusicAlbum
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  type: MusicAlbum
  date published: 2025-04-04
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  type: MusicAlbum
  date published: 2025-07-14