Astrid Hartvig, Ole Kock Hansen og Hans Holm
type: MusicGroup
genre: dansktop
popularity: 15
followers: 79
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x803f342bc30585f66eff7f21948ff94bf771be614ef1fc83de0dd6b53203734c
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953691
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953691
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/6b74cc82-40e3-4916-92af-12f54ec50298.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/6b74cc82-40e3-4916-92af-12f54ec50298.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/6b74cc82-40e3-4916-92af-12f54ec50298
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-14T20:39:17Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x803f342bc30585f66eff7f21948ff94bf771be614ef1fc83de0dd6b53203734c","name":"Astrid Hartvig, Ole Kock Hansen og Hans Holm","registered_at":"2026-06-14T15:40:13Z","symbol":"NIM0498788","token_address":"0x2133e4263b1e48cb0d6a0cbb54b02cf2c4f9326b","type":"artist","uuid":"6b74cc82-40e3-4916-92af-12f54ec50298"}
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
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x803f342bc30585f66eff7f21948ff94bf771be614ef1fc83de0dd6b53203734c. Chain 2 (Bitcoin): anchored in block 953691 (2026-06-14T20:39:17Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/6b74cc82-40e3-4916-92af-12f54ec50298.json and https://artists.proofprofile.net/proofs/artist/6b74cc82-40e3-4916-92af-12f54ec50298.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-14T20:39:17Z
  text: {"copyright_id":"0x803f342bc30585f66eff7f21948ff94bf771be614ef1fc83de0dd6b53203734c","name":"Astrid Hartvig, Ole Kock Hansen og Hans Holm","registered_at":"2026-06-14T15:40:13Z","symbol":"NIM0498788","token_address":"0x2133e4263b1e48cb0d6a0cbb54b02cf2c4f9326b","type":"artist","uuid":"6b74cc82-40e3-4916-92af-12f54ec50298"}
album: Livstræet
  type: MusicAlbum
  date published: 2017-03-27