Nancy Álvarez
type: MusicGroup
popularity: 2
followers: 33
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xfa0e0c50255df6b6e63de85a932812ff6afa28268355c75b1e0dfcca7e0c308b
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953938
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953938
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/1f8ccb90-f2a3-4d87-a49e-a9ee4d4b46cb.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/1f8ccb90-f2a3-4d87-a49e-a9ee4d4b46cb.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/1f8ccb90-f2a3-4d87-a49e-a9ee4d4b46cb
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T11:35:56Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xfa0e0c50255df6b6e63de85a932812ff6afa28268355c75b1e0dfcca7e0c308b","name":"Nancy Álvarez","registered_at":"2026-06-16T00:50:37Z","symbol":"NIM0885450","token_address":"0x791d74e755a8b2680cb8e458a0a14063d67f2e93","type":"artist","uuid":"1f8ccb90-f2a3-4d87-a49e-a9ee4d4b46cb"}
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 0xfa0e0c50255df6b6e63de85a932812ff6afa28268355c75b1e0dfcca7e0c308b. Chain 2 (Bitcoin): anchored in block 953938 (2026-06-16T11:35:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/1f8ccb90-f2a3-4d87-a49e-a9ee4d4b46cb.json and https://artists.proofprofile.net/proofs/artist/1f8ccb90-f2a3-4d87-a49e-a9ee4d4b46cb.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-16T11:35:56Z
  text: {"copyright_id":"0xfa0e0c50255df6b6e63de85a932812ff6afa28268355c75b1e0dfcca7e0c308b","name":"Nancy Álvarez","registered_at":"2026-06-16T00:50:37Z","symbol":"NIM0885450","token_address":"0x791d74e755a8b2680cb8e458a0a14063d67f2e93","type":"artist","uuid":"1f8ccb90-f2a3-4d87-a49e-a9ee4d4b46cb"}
album: De Gris (Remasterizado)
  type: MusicAlbum
  date published: 1964-06-02