Las Columnas
type: MusicGroup
popularity: 4
followers: 774
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x03020ee63d080882e4a35696d30d0ef3ba13b6a3d3b3dbc07bee05dab935fd76
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953911
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953911
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/18a017dd-4e83-4834-8d35-9bb52fa6ac1e.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/18a017dd-4e83-4834-8d35-9bb52fa6ac1e.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/18a017dd-4e83-4834-8d35-9bb52fa6ac1e
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T08:03:10Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x03020ee63d080882e4a35696d30d0ef3ba13b6a3d3b3dbc07bee05dab935fd76","name":"Las Columnas","registered_at":"2026-06-15T22:11:27Z","symbol":"NIM0847448","token_address":"0xea902a2dda42772fe84c463b71531bf96692212d","type":"artist","uuid":"18a017dd-4e83-4834-8d35-9bb52fa6ac1e"}
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 0x03020ee63d080882e4a35696d30d0ef3ba13b6a3d3b3dbc07bee05dab935fd76. 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/18a017dd-4e83-4834-8d35-9bb52fa6ac1e.json and https://artists.proofprofile.net/proofs/artist/18a017dd-4e83-4834-8d35-9bb52fa6ac1e.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-16T20:07:57Z
  text: {"copyright_id":"0x03020ee63d080882e4a35696d30d0ef3ba13b6a3d3b3dbc07bee05dab935fd76","name":"Las Columnas","registered_at":"2026-06-15T22:11:27Z","symbol":"NIM0847448","token_address":"0xea902a2dda42772fe84c463b71531bf96692212d","type":"artist","uuid":"18a017dd-4e83-4834-8d35-9bb52fa6ac1e"}
album: Fairy Lights
  type: MusicAlbum
  date published: 2020-11-24
album: Reflections
  type: MusicAlbum
  date published: 2022-06-10