Roberto Tigani
type: MusicGroup
popularity: 6
followers: 81
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x67ed0d62fb53cb50ca8e8ef2fac44f08ec8355992a19fe6abcce6494bc2f23db
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954139
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954139
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/7fe57759-33b1-4f76-8ad5-23363a1e863e.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/7fe57759-33b1-4f76-8ad5-23363a1e863e.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/7fe57759-33b1-4f76-8ad5-23363a1e863e
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T21:12:18Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x67ed0d62fb53cb50ca8e8ef2fac44f08ec8355992a19fe6abcce6494bc2f23db","name":"Roberto Tigani","registered_at":"2026-06-17T10:15:12Z","symbol":"NIM1363815","token_address":"0x435d603530b732e3b989c94e7c4599f99fb1b2a8","type":"artist","uuid":"7fe57759-33b1-4f76-8ad5-23363a1e863e"}
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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67ed0d62fb53cb50ca8e8ef2fac44f08ec8355992a19fe6abcce6494bc2f23db. Chain 2 (Bitcoin): anchored in block 954139 (2026-06-17T21:12:18Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/7fe57759-33b1-4f76-8ad5-23363a1e863e.json and https://artists.proofprofile.net/proofs/artist/7fe57759-33b1-4f76-8ad5-23363a1e863e.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T21:12:18Z
  text: {"copyright_id":"0x67ed0d62fb53cb50ca8e8ef2fac44f08ec8355992a19fe6abcce6494bc2f23db","name":"Roberto Tigani","registered_at":"2026-06-17T10:15:12Z","symbol":"NIM1363815","token_address":"0x435d603530b732e3b989c94e7c4599f99fb1b2a8","type":"artist","uuid":"7fe57759-33b1-4f76-8ad5-23363a1e863e"}