Guillermo Rozenthuler
type: MusicGroup
genre: vocal jazz
popularity: 30
followers: 121
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x8a4099a48442bfe9258a990a4bd16500a98e286fc4f36148f53f308d9c4bb5ee
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953407
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953407
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/4cc1e295-12a3-43e6-a290-8352a22a4f06.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/4cc1e295-12a3-43e6-a290-8352a22a4f06.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/4cc1e295-12a3-43e6-a290-8352a22a4f06
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-12T19:24:56Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x8a4099a48442bfe9258a990a4bd16500a98e286fc4f36148f53f308d9c4bb5ee","name":"Guillermo Rozenthuler","registered_at":"2026-06-12T15:23:15Z","symbol":"NIM0100426","token_address":"0xa9edefc7f541b4fb45242c2a6b67f0691451aa9c","type":"artist","uuid":"4cc1e295-12a3-43e6-a290-8352a22a4f06"}
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 0x8a4099a48442bfe9258a990a4bd16500a98e286fc4f36148f53f308d9c4bb5ee. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/4cc1e295-12a3-43e6-a290-8352a22a4f06.json and https://artists.proofprofile.net/proofs/artist/4cc1e295-12a3-43e6-a290-8352a22a4f06.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
  date published: 2026-06-12T19:24:56Z
  text: {"copyright_id":"0x8a4099a48442bfe9258a990a4bd16500a98e286fc4f36148f53f308d9c4bb5ee","name":"Guillermo Rozenthuler","registered_at":"2026-06-12T15:23:15Z","symbol":"NIM0100426","token_address":"0xa9edefc7f541b4fb45242c2a6b67f0691451aa9c","type":"artist","uuid":"4cc1e295-12a3-43e6-a290-8352a22a4f06"}