Boston Public Quartet and Friends
type: MusicGroup
popularity: 22
followers: 7
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x64c3cffa43470a0298fc0e576511d33a873de3b27cafe6fb806496d9f35dcb95
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953407
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953407
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/560f52b2-03a5-4426-b8dc-7c76a4ea4603.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/560f52b2-03a5-4426-b8dc-7c76a4ea4603.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/560f52b2-03a5-4426-b8dc-7c76a4ea4603
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-12T19:24:56Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x64c3cffa43470a0298fc0e576511d33a873de3b27cafe6fb806496d9f35dcb95","name":"Boston Public Quartet and Friends","registered_at":"2026-06-11T21:06:39Z","symbol":"NIM0111747","token_address":"0x83168262e3767d473a59480863d25c8f3446e438","type":"artist","uuid":"560f52b2-03a5-4426-b8dc-7c76a4ea4603"}
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 0x64c3cffa43470a0298fc0e576511d33a873de3b27cafe6fb806496d9f35dcb95. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/560f52b2-03a5-4426-b8dc-7c76a4ea4603.json and https://artists.proofprofile.net/proofs/artist/560f52b2-03a5-4426-b8dc-7c76a4ea4603.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-12T19:24:56Z
  text: {"copyright_id":"0x64c3cffa43470a0298fc0e576511d33a873de3b27cafe6fb806496d9f35dcb95","name":"Boston Public Quartet and Friends","registered_at":"2026-06-11T21:06:39Z","symbol":"NIM0111747","token_address":"0x83168262e3767d473a59480863d25c8f3446e438","type":"artist","uuid":"560f52b2-03a5-4426-b8dc-7c76a4ea4603"}