Staffan Atterhall
type: MusicGroup
genre: swedish ballads
popularity: 2
followers: 53
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x125e460d3bf3be4477aef1ad4376d59e66bf0b477768a236883901f08d5c0a94
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954667
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954667
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/b9f8ef1c-3a8e-4a46-ad30-4ba9aacd7946.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/b9f8ef1c-3a8e-4a46-ad30-4ba9aacd7946.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/b9f8ef1c-3a8e-4a46-ad30-4ba9aacd7946
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-21T07:29:20Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x125e460d3bf3be4477aef1ad4376d59e66bf0b477768a236883901f08d5c0a94","name":"Staffan Atterhall","registered_at":"2026-06-20T16:56:47Z","symbol":"NIM1658986","token_address":"0x0e18be9c30e42eafeeb6a114c9b8a1297e9f20d7","type":"artist","uuid":"b9f8ef1c-3a8e-4a46-ad30-4ba9aacd7946"}
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 0x125e460d3bf3be4477aef1ad4376d59e66bf0b477768a236883901f08d5c0a94. Chain 2 (Bitcoin): anchored in block 954667 (2026-06-21T07:29:20Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/b9f8ef1c-3a8e-4a46-ad30-4ba9aacd7946.json and https://artists.proofprofile.net/proofs/artist/b9f8ef1c-3a8e-4a46-ad30-4ba9aacd7946.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-21T07:29:20Z
  text: {"copyright_id":"0x125e460d3bf3be4477aef1ad4376d59e66bf0b477768a236883901f08d5c0a94","name":"Staffan Atterhall","registered_at":"2026-06-20T16:56:47Z","symbol":"NIM1658986","token_address":"0x0e18be9c30e42eafeeb6a114c9b8a1297e9f20d7","type":"artist","uuid":"b9f8ef1c-3a8e-4a46-ad30-4ba9aacd7946"}
album: Staffan Atterhall
  type: MusicAlbum
  date published: 1974-08-31
album: VISOR FÖR ALL TID (Staffan Atterhall sjunger Nils Ferlin)
  type: MusicAlbum
  date published: 1988-05-05