Pi Nine
type: MusicGroup
genre: vinahouse
popularity: 15
followers: 25
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xf729936fdb8887d617322603266b1568c8a4f0a71c58ccc56f6d28947ae2af61
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953684
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953684
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/6646b7d9-7b00-45f4-9450-af335a2d2461.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/6646b7d9-7b00-45f4-9450-af335a2d2461.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/6646b7d9-7b00-45f4-9450-af335a2d2461
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-14T19:51:57Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xf729936fdb8887d617322603266b1568c8a4f0a71c58ccc56f6d28947ae2af61","name":"Pi Nine","registered_at":"2026-06-14T15:14:26Z","symbol":"NIM0492635","token_address":"0xc552d8d4e5152bb076662a55b5ffef12ec129b3e","type":"artist","uuid":"6646b7d9-7b00-45f4-9450-af335a2d2461"}
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 0xf729936fdb8887d617322603266b1568c8a4f0a71c58ccc56f6d28947ae2af61. Chain 2 (Bitcoin): anchored in block 953684 (2026-06-14T19:51:57Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/6646b7d9-7b00-45f4-9450-af335a2d2461.json and https://artists.proofprofile.net/proofs/artist/6646b7d9-7b00-45f4-9450-af335a2d2461.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
  date published: 2026-06-14T19:51:57Z
  text: {"copyright_id":"0xf729936fdb8887d617322603266b1568c8a4f0a71c58ccc56f6d28947ae2af61","name":"Pi Nine","registered_at":"2026-06-14T15:14:26Z","symbol":"NIM0492635","token_address":"0xc552d8d4e5152bb076662a55b5ffef12ec129b3e","type":"artist","uuid":"6646b7d9-7b00-45f4-9450-af335a2d2461"}