Haakon Strøm
type: MusicGroup
popularity: 25
followers: 66
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xb23abade0797c65cde63cac50d0150b7a7b5d0d55c3aa6489e9d68897b467218
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/d139a40a-9400-4f9c-9342-e0e610c9a6c7.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/d139a40a-9400-4f9c-9342-e0e610c9a6c7.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/d139a40a-9400-4f9c-9342-e0e610c9a6c7
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-12T19:24:56Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xb23abade0797c65cde63cac50d0150b7a7b5d0d55c3aa6489e9d68897b467218","name":"Haakon Strøm","registered_at":"2026-06-12T10:27:00Z","symbol":"NIM0269749","token_address":"0x5714935fc6148bcf9f9ec17c3c15b6469bd3b0ad","type":"artist","uuid":"d139a40a-9400-4f9c-9342-e0e610c9a6c7"}
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 0xb23abade0797c65cde63cac50d0150b7a7b5d0d55c3aa6489e9d68897b467218. 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/d139a40a-9400-4f9c-9342-e0e610c9a6c7.json and https://artists.proofprofile.net/proofs/artist/d139a40a-9400-4f9c-9342-e0e610c9a6c7.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":"0xb23abade0797c65cde63cac50d0150b7a7b5d0d55c3aa6489e9d68897b467218","name":"Haakon Strøm","registered_at":"2026-06-12T10:27:00Z","symbol":"NIM0269749","token_address":"0x5714935fc6148bcf9f9ec17c3c15b6469bd3b0ad","type":"artist","uuid":"d139a40a-9400-4f9c-9342-e0e610c9a6c7"}