Coffee Kaffee Café
type: MusicGroup
popularity: 13
followers: 202
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x77f9564ec481c2fd6f76fba201832b5fb9b42f9e289ce7fd9e5ab05bc464f0f8
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953592
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953592
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/0740de6c-f1bf-4095-972c-13942c681e46.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/0740de6c-f1bf-4095-972c-13942c681e46.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/0740de6c-f1bf-4095-972c-13942c681e46
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-14T05:36:59Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x77f9564ec481c2fd6f76fba201832b5fb9b42f9e289ce7fd9e5ab05bc464f0f8","name":"Coffee Kaffee Café","registered_at":"2026-06-14T05:11:52Z","symbol":"NIM0348915","token_address":"0x7970038b155b1a444bcbf07aa802c65eb6d28825","type":"artist","uuid":"0740de6c-f1bf-4095-972c-13942c681e46"}
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 0x77f9564ec481c2fd6f76fba201832b5fb9b42f9e289ce7fd9e5ab05bc464f0f8. Chain 2 (Bitcoin): anchored in block 953592 (2026-06-14T05:36:59Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/0740de6c-f1bf-4095-972c-13942c681e46.json and https://artists.proofprofile.net/proofs/artist/0740de6c-f1bf-4095-972c-13942c681e46.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
  date published: 2026-06-14T05:36:59Z
  text: {"copyright_id":"0x77f9564ec481c2fd6f76fba201832b5fb9b42f9e289ce7fd9e5ab05bc464f0f8","name":"Coffee Kaffee Café","registered_at":"2026-06-14T05:11:52Z","symbol":"NIM0348915","token_address":"0x7970038b155b1a444bcbf07aa802c65eb6d28825","type":"artist","uuid":"0740de6c-f1bf-4095-972c-13942c681e46"}
album: Coffee Kaffee Café Jazz
  type: MusicAlbum
  date published: 2019-10-09
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