Ulf Nilsen
type: MusicGroup
popularity: 6
followers: 128
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x6c51b05228bc5b08067a42cf8796b131451e1a8d4e845d199df1f4862fc2e6ac
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953947
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953947
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/22349f62-d3ea-4523-a35f-ca5edae770ee.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/22349f62-d3ea-4523-a35f-ca5edae770ee.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/22349f62-d3ea-4523-a35f-ca5edae770ee
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T13:14:26Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x6c51b05228bc5b08067a42cf8796b131451e1a8d4e845d199df1f4862fc2e6ac","name":"Ulf Nilsen","registered_at":"2026-06-16T01:26:47Z","symbol":"NIM0894093","token_address":"0xd2d7303f4a28905a93f7ae63662df8e83625dc08","type":"artist","uuid":"22349f62-d3ea-4523-a35f-ca5edae770ee"}
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 0x6c51b05228bc5b08067a42cf8796b131451e1a8d4e845d199df1f4862fc2e6ac. Chain 2 (Bitcoin): anchored in block 953947 (2026-06-16T13:14:26Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/22349f62-d3ea-4523-a35f-ca5edae770ee.json and https://artists.proofprofile.net/proofs/artist/22349f62-d3ea-4523-a35f-ca5edae770ee.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-16T13:14:26Z
  text: {"copyright_id":"0x6c51b05228bc5b08067a42cf8796b131451e1a8d4e845d199df1f4862fc2e6ac","name":"Ulf Nilsen","registered_at":"2026-06-16T01:26:47Z","symbol":"NIM0894093","token_address":"0xd2d7303f4a28905a93f7ae63662df8e83625dc08","type":"artist","uuid":"22349f62-d3ea-4523-a35f-ca5edae770ee"}
album: Two of a Kind
  type: MusicAlbum
  date published: 2005-06-13
album: Two Of A Kind
  type: MusicAlbum
  date published: 2005-06-13
album: Bach Composing - Ulf Improvising (Binaural)
  type: MusicAlbum
  date published: 2021-12-28
album: Bach Composing - Ulf Improvising
  type: MusicAlbum
  date published: 2021-12-28