Nicolas Andreu
type: MusicGroup
popularity: 2
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xd460581c3c961b26d273db0a7fd36bc3cfa120ffc8fac255adb27f167add192f
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954065
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954065
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/53337cc0-c94b-49a1-9579-ab12a6739c69.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/53337cc0-c94b-49a1-9579-ab12a6739c69.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/53337cc0-c94b-49a1-9579-ab12a6739c69
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T08:10:43Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xd460581c3c961b26d273db0a7fd36bc3cfa120ffc8fac255adb27f167add192f","name":"Nicolas Andreu","registered_at":"2026-06-16T18:32:20Z","symbol":"NIM1138887","token_address":"0x963ca02d48826b678e665d9468ed31e069c96ba3","type":"artist","uuid":"53337cc0-c94b-49a1-9579-ab12a6739c69"}
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 0xd460581c3c961b26d273db0a7fd36bc3cfa120ffc8fac255adb27f167add192f. Chain 2 (Bitcoin): anchored in block 954065 (2026-06-17T08:10:43Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/53337cc0-c94b-49a1-9579-ab12a6739c69.json and https://artists.proofprofile.net/proofs/artist/53337cc0-c94b-49a1-9579-ab12a6739c69.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T08:10:43Z
  text: {"copyright_id":"0xd460581c3c961b26d273db0a7fd36bc3cfa120ffc8fac255adb27f167add192f","name":"Nicolas Andreu","registered_at":"2026-06-16T18:32:20Z","symbol":"NIM1138887","token_address":"0x963ca02d48826b678e665d9468ed31e069c96ba3","type":"artist","uuid":"53337cc0-c94b-49a1-9579-ab12a6739c69"}