Isa Ferrer
type: MusicGroup
popularity: 2
followers: 148
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xd4b740777559023a160074d5d20ca3d16d2ef96345deffc27f80fb4f18781560
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954705
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954705
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/ee343c0f-6036-4e23-b4db-bda2438b8810.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/ee343c0f-6036-4e23-b4db-bda2438b8810.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/ee343c0f-6036-4e23-b4db-bda2438b8810
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-21T13:42:37Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xd4b740777559023a160074d5d20ca3d16d2ef96345deffc27f80fb4f18781560","name":"Isa Ferrer","registered_at":"2026-06-21T12:22:38Z","symbol":"NIM1922481","token_address":"0x2b6d7ec0c0d32bcfeb0ba66429cfbb3b77cb628c","type":"artist","uuid":"ee343c0f-6036-4e23-b4db-bda2438b8810"}
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 0xd4b740777559023a160074d5d20ca3d16d2ef96345deffc27f80fb4f18781560. Chain 2 (Bitcoin): anchored in block 954705 (2026-06-21T13:42:37Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/ee343c0f-6036-4e23-b4db-bda2438b8810.json and https://artists.proofprofile.net/proofs/artist/ee343c0f-6036-4e23-b4db-bda2438b8810.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-21T13:42:37Z
  text: {"copyright_id":"0xd4b740777559023a160074d5d20ca3d16d2ef96345deffc27f80fb4f18781560","name":"Isa Ferrer","registered_at":"2026-06-21T12:22:38Z","symbol":"NIM1922481","token_address":"0x2b6d7ec0c0d32bcfeb0ba66429cfbb3b77cb628c","type":"artist","uuid":"ee343c0f-6036-4e23-b4db-bda2438b8810"}
album: Perdón y Gracia
  type: MusicAlbum
  date published: 2022-04-29
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  type: MusicAlbum
  date published: 2023-02-17
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  type: MusicAlbum
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