Alexander Lombardi
type: MusicGroup
popularity: 20
followers: 44
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xa083db42419688df30d733a350a2289bca42c448a5fd2dc36fe25619e4400303
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953783
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953783
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/d5b7031a-3d66-41b5-a8a3-7e81b2b8b85d.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/d5b7031a-3d66-41b5-a8a3-7e81b2b8b85d.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/d5b7031a-3d66-41b5-a8a3-7e81b2b8b85d
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-15T12:24:43Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xa083db42419688df30d733a350a2289bca42c448a5fd2dc36fe25619e4400303","name":"Alexander Lombardi","registered_at":"2026-06-15T02:54:59Z","symbol":"NIM0659797","token_address":"0x6acc70b138043aca41edcf5b652ba4b048167d0f","type":"artist","uuid":"d5b7031a-3d66-41b5-a8a3-7e81b2b8b85d"}
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 0xa083db42419688df30d733a350a2289bca42c448a5fd2dc36fe25619e4400303. Chain 2 (Bitcoin): anchored in block 953783 (2026-06-15T12:24:43Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/d5b7031a-3d66-41b5-a8a3-7e81b2b8b85d.json and https://artists.proofprofile.net/proofs/artist/d5b7031a-3d66-41b5-a8a3-7e81b2b8b85d.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
  date published: 2026-06-15T12:24:43Z
  text: {"copyright_id":"0xa083db42419688df30d733a350a2289bca42c448a5fd2dc36fe25619e4400303","name":"Alexander Lombardi","registered_at":"2026-06-15T02:54:59Z","symbol":"NIM0659797","token_address":"0x6acc70b138043aca41edcf5b652ba4b048167d0f","type":"artist","uuid":"d5b7031a-3d66-41b5-a8a3-7e81b2b8b85d"}