Cotton Duo
type: MusicGroup
popularity: 9
followers: 360
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xe695543599770e7a9925402bd275b4a48944932ecd108b399d3e68690405e5b8
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/562872a7-c857-44f3-abb8-04b40376d801.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/562872a7-c857-44f3-abb8-04b40376d801.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/562872a7-c857-44f3-abb8-04b40376d801
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T08:10:43Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xe695543599770e7a9925402bd275b4a48944932ecd108b399d3e68690405e5b8","name":"Cotton Duo","registered_at":"2026-06-16T19:41:21Z","symbol":"NIM1155352","token_address":"0xbecb9bd151721a51c0898c29d338d0d1b80cb69c","type":"artist","uuid":"562872a7-c857-44f3-abb8-04b40376d801"}
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 0xe695543599770e7a9925402bd275b4a48944932ecd108b399d3e68690405e5b8. 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/562872a7-c857-44f3-abb8-04b40376d801.json and https://artists.proofprofile.net/proofs/artist/562872a7-c857-44f3-abb8-04b40376d801.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T08:10:43Z
  text: {"copyright_id":"0xe695543599770e7a9925402bd275b4a48944932ecd108b399d3e68690405e5b8","name":"Cotton Duo","registered_at":"2026-06-16T19:41:21Z","symbol":"NIM1155352","token_address":"0xbecb9bd151721a51c0898c29d338d0d1b80cb69c","type":"artist","uuid":"562872a7-c857-44f3-abb8-04b40376d801"}
album: Ripples
  type: MusicAlbum
  date published: 2020-01-14
album: Flames of Serenity: Fire Music Journey
  type: MusicAlbum
  date published: 2024-04-22
album: Rain's Symphony: Melodic Rain Sounds
  type: MusicAlbum
  date published: 2024-05-02
album: Relaxation by the Water: Calming Stream Melodies
  type: MusicAlbum
  date published: 2024-05-10
album: Harmonic Depths: Layers of Tone
  type: MusicAlbum
  date published: 2024-06-04