Urban Velvet
type: MusicGroup
popularity: 7
followers: 101
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xc123a2346ccd86017597a35b049f39e1ba8bb4e441b0f8ef8c3e718557e58885
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954587
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954587
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/bb6f403a-d942-4ab4-98dc-63b1c641496b.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/bb6f403a-d942-4ab4-98dc-63b1c641496b.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/bb6f403a-d942-4ab4-98dc-63b1c641496b
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-20T19:10:41Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xc123a2346ccd86017597a35b049f39e1ba8bb4e441b0f8ef8c3e718557e58885","name":"Urban Velvet","registered_at":"2026-06-20T17:05:59Z","symbol":"NIM1662894","token_address":"0x833c2d35a041542c92bfd2a86a2465602412d034","type":"artist","uuid":"bb6f403a-d942-4ab4-98dc-63b1c641496b"}
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 0xc123a2346ccd86017597a35b049f39e1ba8bb4e441b0f8ef8c3e718557e58885. Chain 2 (Bitcoin): anchored in block 954587 (2026-06-20T19:10:41Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/bb6f403a-d942-4ab4-98dc-63b1c641496b.json and https://artists.proofprofile.net/proofs/artist/bb6f403a-d942-4ab4-98dc-63b1c641496b.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-20T19:10:41Z
  text: {"copyright_id":"0xc123a2346ccd86017597a35b049f39e1ba8bb4e441b0f8ef8c3e718557e58885","name":"Urban Velvet","registered_at":"2026-06-20T17:05:59Z","symbol":"NIM1662894","token_address":"0x833c2d35a041542c92bfd2a86a2465602412d034","type":"artist","uuid":"bb6f403a-d942-4ab4-98dc-63b1c641496b"}
album: Urban Velvet
  type: MusicAlbum
  date published: 2024-12-06