Sofa Cafe
type: MusicGroup
popularity: 3
followers: 213
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x1eb6973d368dad6583cccb02559a3a4bd0fc13b9cfc727728a55c10ec76a5f4f
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/bf3c30bc-57ee-42bb-9984-e36fe0932d51.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/bf3c30bc-57ee-42bb-9984-e36fe0932d51.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/bf3c30bc-57ee-42bb-9984-e36fe0932d51
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-21T07:29:20Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x1eb6973d368dad6583cccb02559a3a4bd0fc13b9cfc727728a55c10ec76a5f4f","name":"Sofa Cafe","registered_at":"2026-06-20T19:03:32Z","symbol":"NIM1686330","token_address":"0x80d21a662231cf26fafb7c2b89da07ce1a8a3dee","type":"artist","uuid":"bf3c30bc-57ee-42bb-9984-e36fe0932d51"}
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 0x1eb6973d368dad6583cccb02559a3a4bd0fc13b9cfc727728a55c10ec76a5f4f. 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/bf3c30bc-57ee-42bb-9984-e36fe0932d51.json and https://artists.proofprofile.net/proofs/artist/bf3c30bc-57ee-42bb-9984-e36fe0932d51.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-21T07:29:20Z
  text: {"copyright_id":"0x1eb6973d368dad6583cccb02559a3a4bd0fc13b9cfc727728a55c10ec76a5f4f","name":"Sofa Cafe","registered_at":"2026-06-20T19:03:32Z","symbol":"NIM1686330","token_address":"0x80d21a662231cf26fafb7c2b89da07ce1a8a3dee","type":"artist","uuid":"bf3c30bc-57ee-42bb-9984-e36fe0932d51"}
album: Sexy Ibiza (432 hz version)
  type: MusicAlbum
  date published: 2014-09-30