Bengt-Åke Lundin
type: MusicGroup
genre: chamber music
genre: swedish ballads
popularity: 8
followers: 265
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xdfb3e04739f6af430081b5297ef29668a41e7c7e2144a55ec98e1835be1bb5b7
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954342
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954342
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/8bba0b41-9cff-4180-b7e5-11708ca9b495.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/8bba0b41-9cff-4180-b7e5-11708ca9b495.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/8bba0b41-9cff-4180-b7e5-11708ca9b495
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-19T03:22:39Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xdfb3e04739f6af430081b5297ef29668a41e7c7e2144a55ec98e1835be1bb5b7","name":"Bengt-Åke Lundin","registered_at":"2026-06-17T14:28:17Z","symbol":"NIM1424094","token_address":"0x67e2e45637a1a290ae48c6bcc2b87e814c3bf5c8","type":"artist","uuid":"8bba0b41-9cff-4180-b7e5-11708ca9b495"}
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 0xdfb3e04739f6af430081b5297ef29668a41e7c7e2144a55ec98e1835be1bb5b7. Chain 2 (Bitcoin): anchored in block 954342 (2026-06-19T03:22:39Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/8bba0b41-9cff-4180-b7e5-11708ca9b495.json and https://artists.proofprofile.net/proofs/artist/8bba0b41-9cff-4180-b7e5-11708ca9b495.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-19T03:22:39Z
  text: {"copyright_id":"0xdfb3e04739f6af430081b5297ef29668a41e7c7e2144a55ec98e1835be1bb5b7","name":"Bengt-Åke Lundin","registered_at":"2026-06-17T14:28:17Z","symbol":"NIM1424094","token_address":"0x67e2e45637a1a290ae48c6bcc2b87e814c3bf5c8","type":"artist","uuid":"8bba0b41-9cff-4180-b7e5-11708ca9b495"}
album: Sandström: Piano Concerto / Hammerth: Piano Concerto No. 1
  type: MusicAlbum
  date published: 1999-01-01
album: Sandström: Piano Concerto / Hammerth: Piano Concerto No. 1
  type: MusicAlbum
  date published: 1999-01-01
album: Bengt-Åke Lundin Plays Åhlström & Johnsen
  type: MusicAlbum
  date published: 2010-09-01