Roberto Abbondanza
type: MusicGroup
genre: medieval
genre: opera
popularity: 4
followers: 37
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xebb1a89db7e21bf16555da7152e5046f3dfbd7cbddffceb2b39be5cd3c1aedbd
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953871
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953871
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/074d92ce-262d-41e0-accd-eec4f0221d67.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/074d92ce-262d-41e0-accd-eec4f0221d67.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/074d92ce-262d-41e0-accd-eec4f0221d67
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T01:46:03Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xebb1a89db7e21bf16555da7152e5046f3dfbd7cbddffceb2b39be5cd3c1aedbd","name":"Roberto Abbondanza","registered_at":"2026-06-15T16:00:15Z","symbol":"NIM0758914","token_address":"0x2f20763b60df6ba5b2d5c205ea76919ca3ad6f5a","type":"artist","uuid":"074d92ce-262d-41e0-accd-eec4f0221d67"}
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 0xebb1a89db7e21bf16555da7152e5046f3dfbd7cbddffceb2b39be5cd3c1aedbd. Chain 2 (Bitcoin): anchored in block 953909 (2026-06-16T07:53:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/074d92ce-262d-41e0-accd-eec4f0221d67.json and https://artists.proofprofile.net/proofs/artist/074d92ce-262d-41e0-accd-eec4f0221d67.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-16T07:53:13Z
  text: {"copyright_id":"0xebb1a89db7e21bf16555da7152e5046f3dfbd7cbddffceb2b39be5cd3c1aedbd","name":"Roberto Abbondanza","registered_at":"2026-06-15T16:00:15Z","symbol":"NIM0758914","token_address":"0x2f20763b60df6ba5b2d5c205ea76919ca3ad6f5a","type":"artist","uuid":"074d92ce-262d-41e0-accd-eec4f0221d67"}