Piero Gaddi quartet
type: MusicGroup
popularity: 2
followers: 44
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x1d6a970c2c1202b6621c423652882e64034e0d7bd03ec0abe322d9e5f5b93b02
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954667
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954667
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/cc58b8b5-254b-4d74-b9ab-899b2e61ee13.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/cc58b8b5-254b-4d74-b9ab-899b2e61ee13.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/cc58b8b5-254b-4d74-b9ab-899b2e61ee13
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-21T07:29:20Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x1d6a970c2c1202b6621c423652882e64034e0d7bd03ec0abe322d9e5f5b93b02","name":"Piero Gaddi quartet","registered_at":"2026-06-20T23:36:57Z","symbol":"NIM1747208","token_address":"0x49f2d623383342e1621cdf1d82d0d7bd8276e4e2","type":"artist","uuid":"cc58b8b5-254b-4d74-b9ab-899b2e61ee13"}
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 0x1d6a970c2c1202b6621c423652882e64034e0d7bd03ec0abe322d9e5f5b93b02. Chain 2 (Bitcoin): anchored in block 954667 (2026-06-21T07:29:20Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/cc58b8b5-254b-4d74-b9ab-899b2e61ee13.json and https://artists.proofprofile.net/proofs/artist/cc58b8b5-254b-4d74-b9ab-899b2e61ee13.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-21T07:29:20Z
  text: {"copyright_id":"0x1d6a970c2c1202b6621c423652882e64034e0d7bd03ec0abe322d9e5f5b93b02","name":"Piero Gaddi quartet","registered_at":"2026-06-20T23:36:57Z","symbol":"NIM1747208","token_address":"0x49f2d623383342e1621cdf1d82d0d7bd8276e4e2","type":"artist","uuid":"cc58b8b5-254b-4d74-b9ab-899b2e61ee13"}
album: Opus one
  type: MusicAlbum
  date published: 2020-08-07
album: Il tempo volato
  type: MusicAlbum
  date published: 2024-06-14
album: Opus Two
  type: MusicAlbum
  date published: 2024-06-18