Cu Dubh
type: MusicGroup
genre: celtic
popularity: 2
followers: 2163
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x5612a4de23ee9dfd598ee49499957fb2f10f6e6bdb0f97f2dd3bc6fa9e5ca72f
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954050
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954050
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/431f5243-23e9-4a83-8066-1b807dcddec8.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/431f5243-23e9-4a83-8066-1b807dcddec8.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/431f5243-23e9-4a83-8066-1b807dcddec8
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T05:14:33Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x5612a4de23ee9dfd598ee49499957fb2f10f6e6bdb0f97f2dd3bc6fa9e5ca72f","name":"Cu Dubh","registered_at":"2026-06-16T12:57:19Z","symbol":"NIM1058954","token_address":"0xc39819d6eeb316e1dc2568e9960544e27e4c64e9","type":"artist","uuid":"431f5243-23e9-4a83-8066-1b807dcddec8"}
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
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5612a4de23ee9dfd598ee49499957fb2f10f6e6bdb0f97f2dd3bc6fa9e5ca72f. Chain 2 (Bitcoin): anchored in block 954050 (2026-06-17T05:14:33Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/431f5243-23e9-4a83-8066-1b807dcddec8.json and https://artists.proofprofile.net/proofs/artist/431f5243-23e9-4a83-8066-1b807dcddec8.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T05:14:33Z
  text: {"copyright_id":"0x5612a4de23ee9dfd598ee49499957fb2f10f6e6bdb0f97f2dd3bc6fa9e5ca72f","name":"Cu Dubh","registered_at":"2026-06-16T12:57:19Z","symbol":"NIM1058954","token_address":"0xc39819d6eeb316e1dc2568e9960544e27e4c64e9","type":"artist","uuid":"431f5243-23e9-4a83-8066-1b807dcddec8"}
album: Walkin' the Cinders
  type: MusicAlbum
  date published: 2011-10-30
album: Dance of the Seven Deils
  type: MusicAlbum
  date published: 2012-10-20
album: Reorder of the Owl
  type: MusicAlbum
  date published: 2012-10-20
album: Helvegen
  type: MusicAlbum
  date published: 2024-05-22