Alessandro Calzolaio
type: MusicGroup
genre: latin house
popularity: 7
followers: 53
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x2945277ab6f2879b675e8256de520d1190ad609a2e10b5dad02bd72f770502da
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953984
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953984
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/2d749375-cfa7-410b-858c-44509f4c3986.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/2d749375-cfa7-410b-858c-44509f4c3986.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/2d749375-cfa7-410b-858c-44509f4c3986
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T18:08:34Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x2945277ab6f2879b675e8256de520d1190ad609a2e10b5dad02bd72f770502da","name":"Alessandro Calzolaio","registered_at":"2026-06-16T05:22:46Z","symbol":"NIM0950464","token_address":"0xd5f2ba5470ab96b1472c98e980d9d6c607860052","type":"artist","uuid":"2d749375-cfa7-410b-858c-44509f4c3986"}
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 0x2945277ab6f2879b675e8256de520d1190ad609a2e10b5dad02bd72f770502da. Chain 2 (Bitcoin): anchored in block 954014 (2026-06-16T22:46:20Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/2d749375-cfa7-410b-858c-44509f4c3986.json and https://artists.proofprofile.net/proofs/artist/2d749375-cfa7-410b-858c-44509f4c3986.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-16T22:46:20Z
  text: {"copyright_id":"0x2945277ab6f2879b675e8256de520d1190ad609a2e10b5dad02bd72f770502da","name":"Alessandro Calzolaio","registered_at":"2026-06-16T05:22:46Z","symbol":"NIM0950464","token_address":"0xd5f2ba5470ab96b1472c98e980d9d6c607860052","type":"artist","uuid":"2d749375-cfa7-410b-858c-44509f4c3986"}
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