Bridge Duo
type: MusicGroup
genre: chamber music
popularity: 3
followers: 119
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xd60815d8378e399c4a267f12a051deb3ce98092867ea98272a871dfaae3ad404
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953932
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953932
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/1f2b0492-5cce-4439-b0be-02a46d373e5c.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/1f2b0492-5cce-4439-b0be-02a46d373e5c.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/1f2b0492-5cce-4439-b0be-02a46d373e5c
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T11:10:43Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xd60815d8378e399c4a267f12a051deb3ce98092867ea98272a871dfaae3ad404","name":"Bridge Duo","registered_at":"2026-06-16T00:27:30Z","symbol":"NIM0879932","token_address":"0xfe3255d12e23c7e1afb7bbdf3bacd9bb09541cc7","type":"artist","uuid":"1f2b0492-5cce-4439-b0be-02a46d373e5c"}
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 0xd60815d8378e399c4a267f12a051deb3ce98092867ea98272a871dfaae3ad404. Chain 2 (Bitcoin): anchored in block 953997 (2026-06-16T20:07:57Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/1f2b0492-5cce-4439-b0be-02a46d373e5c.json and https://artists.proofprofile.net/proofs/artist/1f2b0492-5cce-4439-b0be-02a46d373e5c.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-16T20:07:57Z
  text: {"copyright_id":"0xd60815d8378e399c4a267f12a051deb3ce98092867ea98272a871dfaae3ad404","name":"Bridge Duo","registered_at":"2026-06-16T00:27:30Z","symbol":"NIM0879932","token_address":"0xfe3255d12e23c7e1afb7bbdf3bacd9bb09541cc7","type":"artist","uuid":"1f2b0492-5cce-4439-b0be-02a46d373e5c"}
album: Phantasy
  type: MusicAlbum
  date published: 2005