Lina Karo
type: MusicGroup
genre: lullaby
popularity: 40
followers: 23
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x46cd7a2647f168b8ddf3b36e8f743c0af68c6760a3fee2f8698914e0c9442a8e
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953407
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953407
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/52d4a285-d306-4b8b-94c7-58da90723064.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/52d4a285-d306-4b8b-94c7-58da90723064.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/52d4a285-d306-4b8b-94c7-58da90723064
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-12T19:24:56Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x46cd7a2647f168b8ddf3b36e8f743c0af68c6760a3fee2f8698914e0c9442a8e","name":"Lina Karo","registered_at":"2026-06-11T20:52:11Z","symbol":"NIM0108208","token_address":"0x010dd20b448603e92369e02b6177372329790dcc","type":"artist","uuid":"52d4a285-d306-4b8b-94c7-58da90723064"}
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 0x46cd7a2647f168b8ddf3b36e8f743c0af68c6760a3fee2f8698914e0c9442a8e. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/52d4a285-d306-4b8b-94c7-58da90723064.json and https://artists.proofprofile.net/proofs/artist/52d4a285-d306-4b8b-94c7-58da90723064.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
  date published: 2026-06-12T19:24:56Z
  text: {"copyright_id":"0x46cd7a2647f168b8ddf3b36e8f743c0af68c6760a3fee2f8698914e0c9442a8e","name":"Lina Karo","registered_at":"2026-06-11T20:52:11Z","symbol":"NIM0108208","token_address":"0x010dd20b448603e92369e02b6177372329790dcc","type":"artist","uuid":"52d4a285-d306-4b8b-94c7-58da90723064"}
album: My Lullabies
  type: MusicAlbum
  date published: 2022-02-23
album: Hop Along
  type: MusicAlbum
  date published: 2022-03-28
album: My Best Friend
  type: MusicAlbum
  date published: 2024-09-05