Ref Rondo
type: MusicGroup
popularity: 4
followers: 194
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x99e85a6fc12764e7178f6195a4177054c0a4a6aebf04605ce3419e4dd603f49b
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953928
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953928
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/1de5a0dc-70e7-4f81-af71-09e8e986505a.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/1de5a0dc-70e7-4f81-af71-09e8e986505a.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/1de5a0dc-70e7-4f81-af71-09e8e986505a
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T10:21:55Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x99e85a6fc12764e7178f6195a4177054c0a4a6aebf04605ce3419e4dd603f49b","name":"Ref Rondo","registered_at":"2026-06-16T00:01:47Z","symbol":"NIM0873793","token_address":"0x7858fcae552910b2850f5922d370afd733849e41","type":"artist","uuid":"1de5a0dc-70e7-4f81-af71-09e8e986505a"}
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 0x99e85a6fc12764e7178f6195a4177054c0a4a6aebf04605ce3419e4dd603f49b. Chain 2 (Bitcoin): anchored in block 953928 (2026-06-16T10:21:55Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/1de5a0dc-70e7-4f81-af71-09e8e986505a.json and https://artists.proofprofile.net/proofs/artist/1de5a0dc-70e7-4f81-af71-09e8e986505a.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-16T10:21:55Z
  text: {"copyright_id":"0x99e85a6fc12764e7178f6195a4177054c0a4a6aebf04605ce3419e4dd603f49b","name":"Ref Rondo","registered_at":"2026-06-16T00:01:47Z","symbol":"NIM0873793","token_address":"0x7858fcae552910b2850f5922d370afd733849e41","type":"artist","uuid":"1de5a0dc-70e7-4f81-af71-09e8e986505a"}
album: Turbo
  type: MusicAlbum
  date published: 2019-06-07
album: Parfait
  type: MusicAlbum
  date published: 2021-03-28
album: Real Love
  type: MusicAlbum
  date published: 2021-05-16
album: Deux Fois
  type: MusicAlbum
  date published: 2022-02-13
album: Week-End
  type: MusicAlbum
  date published: 2022-05-29
album: Wari
  type: MusicAlbum
  date published: 2022-09-02