Guillermo Lago
type: MusicGroup
popularity: 11
followers: 150
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x9109934a14e2bd6fbcd74068a4308fe0fc2fc23ac8454f1256502f5233ba9fc3
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953616
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953616
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/1b63c2ca-25cb-40c0-bb95-fb3213ca13ee.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/1b63c2ca-25cb-40c0-bb95-fb3213ca13ee.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/1b63c2ca-25cb-40c0-bb95-fb3213ca13ee
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-14T08:58:35Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x9109934a14e2bd6fbcd74068a4308fe0fc2fc23ac8454f1256502f5233ba9fc3","name":"Guillermo Lago","registered_at":"2026-06-14T07:16:03Z","symbol":"NIM0378499","token_address":"0x13ee9fb9a3c780982f5b26f0699d94cba23925bf","type":"artist","uuid":"1b63c2ca-25cb-40c0-bb95-fb3213ca13ee"}
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 0x9109934a14e2bd6fbcd74068a4308fe0fc2fc23ac8454f1256502f5233ba9fc3. Chain 2 (Bitcoin): anchored in block 953616 (2026-06-14T08:58:35Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/1b63c2ca-25cb-40c0-bb95-fb3213ca13ee.json and https://artists.proofprofile.net/proofs/artist/1b63c2ca-25cb-40c0-bb95-fb3213ca13ee.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-14T08:58:35Z
  text: {"copyright_id":"0x9109934a14e2bd6fbcd74068a4308fe0fc2fc23ac8454f1256502f5233ba9fc3","name":"Guillermo Lago","registered_at":"2026-06-14T07:16:03Z","symbol":"NIM0378499","token_address":"0x13ee9fb9a3c780982f5b26f0699d94cba23925bf","type":"artist","uuid":"1b63c2ca-25cb-40c0-bb95-fb3213ca13ee"}
album: Addis Ababa
  type: MusicAlbum
  date published: 2018-05-26
album: Ciudades
  type: MusicAlbum
  date published: 2025-01-31
album: Ciudades: Sarajevo
  type: MusicAlbum
  date published: 2025-01-31