Claire Jakobsen
type: MusicGroup
popularity: 12
followers: 16
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x1a2c27861ac7c1b158897c9d0874c2ff537b05fe3520e76d5c7df01bde2bf9eb
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953803
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953803
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/e8512882-189d-478c-ad2f-3477f6617d59.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/e8512882-189d-478c-ad2f-3477f6617d59.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/e8512882-189d-478c-ad2f-3477f6617d59
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-15T15:41:00Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x1a2c27861ac7c1b158897c9d0874c2ff537b05fe3520e76d5c7df01bde2bf9eb","name":"Claire Jakobsen","registered_at":"2026-06-15T04:50:48Z","symbol":"NIM0687440","token_address":"0xb22c25a46a2befa5d85e8fccc4648d24d57989d1","type":"artist","uuid":"e8512882-189d-478c-ad2f-3477f6617d59"}
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 0x1a2c27861ac7c1b158897c9d0874c2ff537b05fe3520e76d5c7df01bde2bf9eb. Chain 2 (Bitcoin): anchored in block 953803 (2026-06-15T15:41:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/e8512882-189d-478c-ad2f-3477f6617d59.json and https://artists.proofprofile.net/proofs/artist/e8512882-189d-478c-ad2f-3477f6617d59.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-15T15:41:00Z
  text: {"copyright_id":"0x1a2c27861ac7c1b158897c9d0874c2ff537b05fe3520e76d5c7df01bde2bf9eb","name":"Claire Jakobsen","registered_at":"2026-06-15T04:50:48Z","symbol":"NIM0687440","token_address":"0xb22c25a46a2befa5d85e8fccc4648d24d57989d1","type":"artist","uuid":"e8512882-189d-478c-ad2f-3477f6617d59"}