Magasin du Café
type: MusicGroup
genre: cool jazz
popularity: 4
followers: 1410
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x18cb4cc9068c5bb52403b2ed840b312926734c45716c9d51b89fbc6a68e02295
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953997
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953997
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/2124e8e2-59a5-4020-9011-38ceddd91bb9.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/2124e8e2-59a5-4020-9011-38ceddd91bb9.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/2124e8e2-59a5-4020-9011-38ceddd91bb9
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T20:07:57Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x18cb4cc9068c5bb52403b2ed840b312926734c45716c9d51b89fbc6a68e02295","name":"Magasin du Café","registered_at":"2026-06-16T01:05:03Z","symbol":"NIM0888891","token_address":"0x1ae83de9a64009daf1bc15449d66639b65149290","type":"artist","uuid":"2124e8e2-59a5-4020-9011-38ceddd91bb9"}
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 0x18cb4cc9068c5bb52403b2ed840b312926734c45716c9d51b89fbc6a68e02295. Chain 2 (Bitcoin): anchored in block 953997 (2026-06-16T20:07:57Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/2124e8e2-59a5-4020-9011-38ceddd91bb9.json and https://artists.proofprofile.net/proofs/artist/2124e8e2-59a5-4020-9011-38ceddd91bb9.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-16T20:07:57Z
  text: {"copyright_id":"0x18cb4cc9068c5bb52403b2ed840b312926734c45716c9d51b89fbc6a68e02295","name":"Magasin du Café","registered_at":"2026-06-16T01:05:03Z","symbol":"NIM0888891","token_address":"0x1ae83de9a64009daf1bc15449d66639b65149290","type":"artist","uuid":"2124e8e2-59a5-4020-9011-38ceddd91bb9"}
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