Cantar Alla Viola
type: MusicGroup
popularity: 3
followers: 160
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x644597019acb0d31c53da5b73066816f448fc45ac207f10ef7d7c224b6e9b4af
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954631
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954631
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/d11fec31-9f6b-4f0c-8a5b-3f2d08c5760c.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/d11fec31-9f6b-4f0c-8a5b-3f2d08c5760c.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/d11fec31-9f6b-4f0c-8a5b-3f2d08c5760c
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-21T02:46:24Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x644597019acb0d31c53da5b73066816f448fc45ac207f10ef7d7c224b6e9b4af","name":"Cantar Alla Viola","registered_at":"2026-06-21T01:07:51Z","symbol":"NIM1772702","token_address":"0x6ef9b8ae998d54a378bb001ecd885c853dab438e","type":"artist","uuid":"d11fec31-9f6b-4f0c-8a5b-3f2d08c5760c"}
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 0x644597019acb0d31c53da5b73066816f448fc45ac207f10ef7d7c224b6e9b4af. Chain 2 (Bitcoin): anchored in block 954631 (2026-06-21T02:46:24Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/d11fec31-9f6b-4f0c-8a5b-3f2d08c5760c.json and https://artists.proofprofile.net/proofs/artist/d11fec31-9f6b-4f0c-8a5b-3f2d08c5760c.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-21T02:46:24Z
  text: {"copyright_id":"0x644597019acb0d31c53da5b73066816f448fc45ac207f10ef7d7c224b6e9b4af","name":"Cantar Alla Viola","registered_at":"2026-06-21T01:07:51Z","symbol":"NIM1772702","token_address":"0x6ef9b8ae998d54a378bb001ecd885c853dab438e","type":"artist","uuid":"d11fec31-9f6b-4f0c-8a5b-3f2d08c5760c"}
album: Jones: The Second Booke of Songs and Ayres
  type: MusicAlbum
  date published: 2009
album: Segreti accenti: Italian Renaissance Music
  type: MusicAlbum
  date published: 2018-04-06
album: Segreti accenti: Italian Renaissance Music
  type: MusicAlbum
  date published: 2018-04-06