Four Aces Guitar Quartet
type: MusicGroup
popularity: 2
followers: 303
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x7bd386a83bf84b39c511a6a84a4ab673198e2075e07a79739fb850c4b35c4613
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954008
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954008
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/337629fb-efe8-44b5-bfc3-dca6e9326f60.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/337629fb-efe8-44b5-bfc3-dca6e9326f60.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/337629fb-efe8-44b5-bfc3-dca6e9326f60
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T21:31:27Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x7bd386a83bf84b39c511a6a84a4ab673198e2075e07a79739fb850c4b35c4613","name":"Four Aces Guitar Quartet","registered_at":"2026-06-16T07:32:25Z","symbol":"NIM0981428","token_address":"0xb620fd36061d88953e959e84971fb97654a43b71","type":"artist","uuid":"337629fb-efe8-44b5-bfc3-dca6e9326f60"}
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 0x7bd386a83bf84b39c511a6a84a4ab673198e2075e07a79739fb850c4b35c4613. Chain 2 (Bitcoin): anchored in block 954008 (2026-06-16T21:31:27Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/337629fb-efe8-44b5-bfc3-dca6e9326f60.json and https://artists.proofprofile.net/proofs/artist/337629fb-efe8-44b5-bfc3-dca6e9326f60.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-16T21:31:27Z
  text: {"copyright_id":"0x7bd386a83bf84b39c511a6a84a4ab673198e2075e07a79739fb850c4b35c4613","name":"Four Aces Guitar Quartet","registered_at":"2026-06-16T07:32:25Z","symbol":"NIM0981428","token_address":"0xb620fd36061d88953e959e84971fb97654a43b71","type":"artist","uuid":"337629fb-efe8-44b5-bfc3-dca6e9326f60"}
album: Odyssee
  type: MusicAlbum
  date published: 2013-11-30
album: For Aces
  type: MusicAlbum
  date published: 2016-10-07
album: Tabula Rasa
  type: MusicAlbum
  date published: 2019-08-27
album: Plan BE
  type: MusicAlbum
  date published: 2023-11-03