Robert Larrandaburu
type: MusicGroup
popularity: 4
followers: 119
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xa72327e6b6572275f55dba1051654ee0ea5a5ba609e83a47fd04bb02beaaeaba
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953899
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953899
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/1301be29-b193-4b70-9eb1-4dcb95659a67.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/1301be29-b193-4b70-9eb1-4dcb95659a67.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/1301be29-b193-4b70-9eb1-4dcb95659a67
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T06:37:25Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xa72327e6b6572275f55dba1051654ee0ea5a5ba609e83a47fd04bb02beaaeaba","name":"Robert Larrandaburu","registered_at":"2026-06-15T20:24:00Z","symbol":"NIM0821840","token_address":"0xd7b56c88d947e60cd251019da8e969042edcc5b2","type":"artist","uuid":"1301be29-b193-4b70-9eb1-4dcb95659a67"}
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 0xa72327e6b6572275f55dba1051654ee0ea5a5ba609e83a47fd04bb02beaaeaba. Chain 2 (Bitcoin): anchored in block 953899 (2026-06-16T06:37:25Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/1301be29-b193-4b70-9eb1-4dcb95659a67.json and https://artists.proofprofile.net/proofs/artist/1301be29-b193-4b70-9eb1-4dcb95659a67.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-16T06:37:25Z
  text: {"copyright_id":"0xa72327e6b6572275f55dba1051654ee0ea5a5ba609e83a47fd04bb02beaaeaba","name":"Robert Larrandaburu","registered_at":"2026-06-15T20:24:00Z","symbol":"NIM0821840","token_address":"0xd7b56c88d947e60cd251019da8e969042edcc5b2","type":"artist","uuid":"1301be29-b193-4b70-9eb1-4dcb95659a67"}
album: Zuzenean - En concert / Chant Souletine
  type: MusicAlbum
  date published: 2010-05-11