Barbara Burren
type: MusicGroup
popularity: 10
followers: 1024
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xd8aea27a399ed660652a7d9bb8b822cc677df9087c1cea15c264cc765b80ce6d
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954618
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954618
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/c9705d8f-093b-4065-83f4-32ba4474bbe5.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/c9705d8f-093b-4065-83f4-32ba4474bbe5.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/c9705d8f-093b-4065-83f4-32ba4474bbe5
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-20T23:05:13Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xd8aea27a399ed660652a7d9bb8b822cc677df9087c1cea15c264cc765b80ce6d","name":"Barbara Burren","registered_at":"2026-06-20T22:25:51Z","symbol":"NIM1731884","token_address":"0xa1a8ab19c38b692ed92341c4a895f131b2341596","type":"artist","uuid":"c9705d8f-093b-4065-83f4-32ba4474bbe5"}
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 0xd8aea27a399ed660652a7d9bb8b822cc677df9087c1cea15c264cc765b80ce6d. Chain 2 (Bitcoin): anchored in block 954618 (2026-06-20T23:05:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/c9705d8f-093b-4065-83f4-32ba4474bbe5.json and https://artists.proofprofile.net/proofs/artist/c9705d8f-093b-4065-83f4-32ba4474bbe5.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-20T23:05:13Z
  text: {"copyright_id":"0xd8aea27a399ed660652a7d9bb8b822cc677df9087c1cea15c264cc765b80ce6d","name":"Barbara Burren","registered_at":"2026-06-20T22:25:51Z","symbol":"NIM1731884","token_address":"0xa1a8ab19c38b692ed92341c4a895f131b2341596","type":"artist","uuid":"c9705d8f-093b-4065-83f4-32ba4474bbe5"}
album: Sämis Piratebande - Winter-Pirate
  type: MusicAlbum
  date published: 2011-01-01
album: Schatzinsel
  type: MusicAlbum
  date published: 2016-07-15
album: Schatzinsel
  type: MusicAlbum
  date published: 2016-07-15