Celda + Sonja
type: MusicGroup
genre: tango
popularity: 2
followers: 62
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xeb6bac5526b3fd18d372501d4a73d4c3107eab05cb6cd6263dccd4a6fc737eac
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954014
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954014
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/26587304-0211-42ed-8fae-9af93a1b79c5.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/26587304-0211-42ed-8fae-9af93a1b79c5.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/26587304-0211-42ed-8fae-9af93a1b79c5
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T22:46:20Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xeb6bac5526b3fd18d372501d4a73d4c3107eab05cb6cd6263dccd4a6fc737eac","name":"Celda + Sonja","registered_at":"2026-06-16T02:58:51Z","symbol":"NIM0916094","token_address":"0xcf96441ee1dbe3ed7a6f0459599c8db8f233acd0","type":"artist","uuid":"26587304-0211-42ed-8fae-9af93a1b79c5"}
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 0xeb6bac5526b3fd18d372501d4a73d4c3107eab05cb6cd6263dccd4a6fc737eac. Chain 2 (Bitcoin): anchored in block 954014 (2026-06-16T22:46:20Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/26587304-0211-42ed-8fae-9af93a1b79c5.json and https://artists.proofprofile.net/proofs/artist/26587304-0211-42ed-8fae-9af93a1b79c5.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-16T22:46:20Z
  text: {"copyright_id":"0xeb6bac5526b3fd18d372501d4a73d4c3107eab05cb6cd6263dccd4a6fc737eac","name":"Celda + Sonja","registered_at":"2026-06-16T02:58:51Z","symbol":"NIM0916094","token_address":"0xcf96441ee1dbe3ed7a6f0459599c8db8f233acd0","type":"artist","uuid":"26587304-0211-42ed-8fae-9af93a1b79c5"}