Ma Biche
type: MusicGroup
description: Ma Biche (foaled 1980) was an American-bred, French-trained Thoroughbred racehorse and broodmare who won the classic 1000 Guineas at Newmarket Racecourse in 1983. The filly was the best racehorse of
popularity: 4
followers: 26
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xbf027780b4caa158a29ef7a922db14df827fda4bfa24873646e5a8e04dcc263a
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954729
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954729
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/fbc9bccb-cc6b-4a74-b6f0-875e2efa1326.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/fbc9bccb-cc6b-4a74-b6f0-875e2efa1326.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/fbc9bccb-cc6b-4a74-b6f0-875e2efa1326
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-21T18:16:07Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xbf027780b4caa158a29ef7a922db14df827fda4bfa24873646e5a8e04dcc263a","name":"Ma Biche","registered_at":"2026-06-21T17:20:06Z","symbol":"NIM1984924","token_address":"0x8ed3d472a6b57aaf4ecd070d8d5f5aea28977eb6","type":"artist","uuid":"fbc9bccb-cc6b-4a74-b6f0-875e2efa1326"}
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 0xbf027780b4caa158a29ef7a922db14df827fda4bfa24873646e5a8e04dcc263a. Chain 2 (Bitcoin): anchored in block 954729 (2026-06-21T18:16:07Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/fbc9bccb-cc6b-4a74-b6f0-875e2efa1326.json and https://artists.proofprofile.net/proofs/artist/fbc9bccb-cc6b-4a74-b6f0-875e2efa1326.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-21T18:16:07Z
  text: {"copyright_id":"0xbf027780b4caa158a29ef7a922db14df827fda4bfa24873646e5a8e04dcc263a","name":"Ma Biche","registered_at":"2026-06-21T17:20:06Z","symbol":"NIM1984924","token_address":"0x8ed3d472a6b57aaf4ecd070d8d5f5aea28977eb6","type":"artist","uuid":"fbc9bccb-cc6b-4a74-b6f0-875e2efa1326"}
album: Abysses
  type: MusicAlbum
  date published: 2025-04-03
album: Nightwood
  type: MusicAlbum
  date published: 2025-10-20