Trio Guadiana
type: MusicGroup
genre: fado
genre: traditional music
popularity: 2
followers: 37
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xbc3835b68ac6ded8ce4adfffe12fb2ebc4557b67a0f872e43c8f162f9c4f7666
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953915
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953915
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/19e9bed4-a28c-480b-9570-bc13adc79947.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/19e9bed4-a28c-480b-9570-bc13adc79947.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/19e9bed4-a28c-480b-9570-bc13adc79947
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T08:36:32Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xbc3835b68ac6ded8ce4adfffe12fb2ebc4557b67a0f872e43c8f162f9c4f7666","name":"Trio Guadiana","registered_at":"2026-06-15T22:38:59Z","symbol":"NIM0854017","token_address":"0xc67e072b63ba370ffaa662682f385eb22c6349aa","type":"artist","uuid":"19e9bed4-a28c-480b-9570-bc13adc79947"}
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
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc3835b68ac6ded8ce4adfffe12fb2ebc4557b67a0f872e43c8f162f9c4f7666. Chain 2 (Bitcoin): anchored in block 953997 (2026-06-16T20:07:57Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/19e9bed4-a28c-480b-9570-bc13adc79947.json and https://artists.proofprofile.net/proofs/artist/19e9bed4-a28c-480b-9570-bc13adc79947.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-16T20:07:57Z
  text: {"copyright_id":"0xbc3835b68ac6ded8ce4adfffe12fb2ebc4557b67a0f872e43c8f162f9c4f7666","name":"Trio Guadiana","registered_at":"2026-06-15T22:38:59Z","symbol":"NIM0854017","token_address":"0xc67e072b63ba370ffaa662682f385eb22c6349aa","type":"artist","uuid":"19e9bed4-a28c-480b-9570-bc13adc79947"}
album: De Regreso
  type: MusicAlbum
  date published: 2023-12-08