Coros Cantores De Madrid
type: MusicGroup
popularity: 25
followers: 1042
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xe5b783eb098cec9017e385b7a50d867f61d8fe6994fd364f640de3623f3f7f46
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953408
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953408
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/cb3a644d-b11d-4ae6-9c29-9d568f4f9bb7.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/cb3a644d-b11d-4ae6-9c29-9d568f4f9bb7.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/cb3a644d-b11d-4ae6-9c29-9d568f4f9bb7
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-12T19:28:13Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xe5b783eb098cec9017e385b7a50d867f61d8fe6994fd364f640de3623f3f7f46","name":"Coros Cantores De Madrid","registered_at":"2026-06-12T09:47:50Z","symbol":"NIM0260681","token_address":"0xd1caa766fc357efe537c2aed9e9a329ca46f8ed3","type":"artist","uuid":"cb3a644d-b11d-4ae6-9c29-9d568f4f9bb7"}
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 0xe5b783eb098cec9017e385b7a50d867f61d8fe6994fd364f640de3623f3f7f46. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/cb3a644d-b11d-4ae6-9c29-9d568f4f9bb7.json and https://artists.proofprofile.net/proofs/artist/cb3a644d-b11d-4ae6-9c29-9d568f4f9bb7.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-12T19:28:13Z
  text: {"copyright_id":"0xe5b783eb098cec9017e385b7a50d867f61d8fe6994fd364f640de3623f3f7f46","name":"Coros Cantores De Madrid","registered_at":"2026-06-12T09:47:50Z","symbol":"NIM0260681","token_address":"0xd1caa766fc357efe537c2aed9e9a329ca46f8ed3","type":"artist","uuid":"cb3a644d-b11d-4ae6-9c29-9d568f4f9bb7"}
album: Zarzuelas Famosas
  type: MusicAlbum
  date published: 2011-11-07
album: Preludios e Intermedios de Zarzuelas 3
  type: MusicAlbum
  date published: 2011-12-06