Rob Crespo
type: MusicGroup
genre: nerdcore
popularity: 7
followers: 3
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xf7e0f1068f38433b76b1c5b628b94ebadea76ae0476da45c31c2eb61387bb8f2
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953909
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953909
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/180025f7-83e7-4517-b662-8b9184dbbcde.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/180025f7-83e7-4517-b662-8b9184dbbcde.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/180025f7-83e7-4517-b662-8b9184dbbcde
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T07:53:13Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xf7e0f1068f38433b76b1c5b628b94ebadea76ae0476da45c31c2eb61387bb8f2","name":"Rob Crespo","registered_at":"2026-06-15T21:55:12Z","symbol":"NIM0843578","token_address":"0xe51aca07f54b74c419f912c6451f96ca4c988d1b","type":"artist","uuid":"180025f7-83e7-4517-b662-8b9184dbbcde"}
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 0xf7e0f1068f38433b76b1c5b628b94ebadea76ae0476da45c31c2eb61387bb8f2. 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/180025f7-83e7-4517-b662-8b9184dbbcde.json and https://artists.proofprofile.net/proofs/artist/180025f7-83e7-4517-b662-8b9184dbbcde.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-16T07:53:13Z
  text: {"copyright_id":"0xf7e0f1068f38433b76b1c5b628b94ebadea76ae0476da45c31c2eb61387bb8f2","name":"Rob Crespo","registered_at":"2026-06-15T21:55:12Z","symbol":"NIM0843578","token_address":"0xe51aca07f54b74c419f912c6451f96ca4c988d1b","type":"artist","uuid":"180025f7-83e7-4517-b662-8b9184dbbcde"}