La Four SA
type: MusicGroup
genre: 3 step
genre: deep house
popularity: 4
followers: 1329
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x1eea0b696e30acf2fbeaa6dd95ecbc8a9d9b1e25057551afb83a2e8181606c1f
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954693
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954693
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/e4edc9c9-6ff0-499e-9e6d-f1e1615a5c2d.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/e4edc9c9-6ff0-499e-9e6d-f1e1615a5c2d.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/e4edc9c9-6ff0-499e-9e6d-f1e1615a5c2d
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-21T11:50:32Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x1eea0b696e30acf2fbeaa6dd95ecbc8a9d9b1e25057551afb83a2e8181606c1f","name":"La Four SA","registered_at":"2026-06-21T08:15:01Z","symbol":"NIM1872400","token_address":"0x9801487c5f4b30e3af0356869c3c985dc91c06e4","type":"artist","uuid":"e4edc9c9-6ff0-499e-9e6d-f1e1615a5c2d"}
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 0x1eea0b696e30acf2fbeaa6dd95ecbc8a9d9b1e25057551afb83a2e8181606c1f. Chain 2 (Bitcoin): anchored in block 954693 (2026-06-21T11:50:32Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/e4edc9c9-6ff0-499e-9e6d-f1e1615a5c2d.json and https://artists.proofprofile.net/proofs/artist/e4edc9c9-6ff0-499e-9e6d-f1e1615a5c2d.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-21T11:50:32Z
  text: {"copyright_id":"0x1eea0b696e30acf2fbeaa6dd95ecbc8a9d9b1e25057551afb83a2e8181606c1f","name":"La Four SA","registered_at":"2026-06-21T08:15:01Z","symbol":"NIM1872400","token_address":"0x9801487c5f4b30e3af0356869c3c985dc91c06e4","type":"artist","uuid":"e4edc9c9-6ff0-499e-9e6d-f1e1615a5c2d"}
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  type: MusicAlbum
  date published: 2023-08-18
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  type: MusicAlbum
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