Hazel Sapphire
type: MusicGroup
popularity: 2
followers: 127
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x913f9f214d3266ec3bbdbf17f850e9db8f6375c50fc8b99055602b5874daebbe
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954549
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954549
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/a9fc1726-b5b7-4d83-8438-015c0e53c1c6.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/a9fc1726-b5b7-4d83-8438-015c0e53c1c6.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/a9fc1726-b5b7-4d83-8438-015c0e53c1c6
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-20T10:56:20Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x913f9f214d3266ec3bbdbf17f850e9db8f6375c50fc8b99055602b5874daebbe","name":"Hazel Sapphire","registered_at":"2026-06-20T09:26:45Z","symbol":"NIM1578620","token_address":"0xd582b0d20e1558f2574af4b33376191a0ab343b1","type":"artist","uuid":"a9fc1726-b5b7-4d83-8438-015c0e53c1c6"}
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 0x913f9f214d3266ec3bbdbf17f850e9db8f6375c50fc8b99055602b5874daebbe. Chain 2 (Bitcoin): anchored in block 954549 (2026-06-20T10:56:20Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/a9fc1726-b5b7-4d83-8438-015c0e53c1c6.json and https://artists.proofprofile.net/proofs/artist/a9fc1726-b5b7-4d83-8438-015c0e53c1c6.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-20T10:56:20Z
  text: {"copyright_id":"0x913f9f214d3266ec3bbdbf17f850e9db8f6375c50fc8b99055602b5874daebbe","name":"Hazel Sapphire","registered_at":"2026-06-20T09:26:45Z","symbol":"NIM1578620","token_address":"0xd582b0d20e1558f2574af4b33376191a0ab343b1","type":"artist","uuid":"a9fc1726-b5b7-4d83-8438-015c0e53c1c6"}
album: Don't Start
  type: MusicAlbum
  date published: 2023-06-09
album: Balance
  type: MusicAlbum
  date published: 2023-08-04
album: Bad Habit
  type: MusicAlbum
  date published: 2024-11-08