Libro Aperto
type: MusicGroup
popularity: 12
followers: 11
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x0bad4ea38daa0495c08eeb67cf2bff08fc332550af3eb87e200b4b6107a825b1
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953657
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953657
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/4a6e69fb-8174-475a-89d7-e4b6f5862917.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/4a6e69fb-8174-475a-89d7-e4b6f5862917.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/4a6e69fb-8174-475a-89d7-e4b6f5862917
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-14T16:43:25Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x0bad4ea38daa0495c08eeb67cf2bff08fc332550af3eb87e200b4b6107a825b1","name":"Libro Aperto","registered_at":"2026-06-14T12:18:30Z","symbol":"NIM0450640","token_address":"0x762e6642b6de98e52d44787026fe6bd7d957cda0","type":"artist","uuid":"4a6e69fb-8174-475a-89d7-e4b6f5862917"}
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 0x0bad4ea38daa0495c08eeb67cf2bff08fc332550af3eb87e200b4b6107a825b1. Chain 2 (Bitcoin): anchored in block 953657 (2026-06-14T16:43:25Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/4a6e69fb-8174-475a-89d7-e4b6f5862917.json and https://artists.proofprofile.net/proofs/artist/4a6e69fb-8174-475a-89d7-e4b6f5862917.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-14T16:43:25Z
  text: {"copyright_id":"0x0bad4ea38daa0495c08eeb67cf2bff08fc332550af3eb87e200b4b6107a825b1","name":"Libro Aperto","registered_at":"2026-06-14T12:18:30Z","symbol":"NIM0450640","token_address":"0x762e6642b6de98e52d44787026fe6bd7d957cda0","type":"artist","uuid":"4a6e69fb-8174-475a-89d7-e4b6f5862917"}
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