Percy Brice
type: MusicGroup
genre: vocal jazz
description: Austin Percy Brice Jr. (March 25, 1923 – November 2020), nicknamed Big P, was an American jazz drummer. Brice was born in March 1923 in New York City. His professional career began around the end of
popularity: 2
followers: 4
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xc75acdde549266482340d9eb927fda384d8845243bae36030bb82a861a7fb437
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954728
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954728
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/f8d816f1-603a-4d64-9ac7-41f3176da788.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/f8d816f1-603a-4d64-9ac7-41f3176da788.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/f8d816f1-603a-4d64-9ac7-41f3176da788
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-21T18:08:38Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xc75acdde549266482340d9eb927fda384d8845243bae36030bb82a861a7fb437","name":"Percy Brice","registered_at":"2026-06-21T16:10:11Z","symbol":"NIM1969214","token_address":"0x7440eda8bfb50f657f49c497e1f451b3aa6862ba","type":"artist","uuid":"f8d816f1-603a-4d64-9ac7-41f3176da788"}
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 0xc75acdde549266482340d9eb927fda384d8845243bae36030bb82a861a7fb437. Chain 2 (Bitcoin): anchored in block 954728 (2026-06-21T18:08:38Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/f8d816f1-603a-4d64-9ac7-41f3176da788.json and https://artists.proofprofile.net/proofs/artist/f8d816f1-603a-4d64-9ac7-41f3176da788.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
  date published: 2026-06-21T18:08:38Z
  text: {"copyright_id":"0xc75acdde549266482340d9eb927fda384d8845243bae36030bb82a861a7fb437","name":"Percy Brice","registered_at":"2026-06-21T16:10:11Z","symbol":"NIM1969214","token_address":"0x7440eda8bfb50f657f49c497e1f451b3aa6862ba","type":"artist","uuid":"f8d816f1-603a-4d64-9ac7-41f3176da788"}