Smooth Key
type: MusicGroup
popularity: 3
followers: 59
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xad69d59f089101eb9dc8db3851dbbe99bdb9ea60775edad03aa374cec7d3d09f
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954346
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954346
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/9afd4306-f5ec-4806-86a5-c9d1172b500d.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/9afd4306-f5ec-4806-86a5-c9d1172b500d.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/9afd4306-f5ec-4806-86a5-c9d1172b500d
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-19T03:51:26Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xad69d59f089101eb9dc8db3851dbbe99bdb9ea60775edad03aa374cec7d3d09f","name":"Smooth Key","registered_at":"2026-06-17T19:32:19Z","symbol":"NIM1496668","token_address":"0xe5d014110f2b2c0ac5b856711255aa78b0e1764f","type":"artist","uuid":"9afd4306-f5ec-4806-86a5-c9d1172b500d"}
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 0xad69d59f089101eb9dc8db3851dbbe99bdb9ea60775edad03aa374cec7d3d09f. Chain 2 (Bitcoin): anchored in block 954346 (2026-06-19T03:51:26Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/9afd4306-f5ec-4806-86a5-c9d1172b500d.json and https://artists.proofprofile.net/proofs/artist/9afd4306-f5ec-4806-86a5-c9d1172b500d.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-19T03:51:26Z
  text: {"copyright_id":"0xad69d59f089101eb9dc8db3851dbbe99bdb9ea60775edad03aa374cec7d3d09f","name":"Smooth Key","registered_at":"2026-06-17T19:32:19Z","symbol":"NIM1496668","token_address":"0xe5d014110f2b2c0ac5b856711255aa78b0e1764f","type":"artist","uuid":"9afd4306-f5ec-4806-86a5-c9d1172b500d"}
album: Wake me up (Piano Version)
  type: MusicAlbum
  date published: 2021-03-21
album: Apologize (Piano Version)
  type: MusicAlbum
  date published: 2021-03-29
album: Perfect (Piano Version)
  type: MusicAlbum
  date published: 2021-04-01
album: Shape of you (Piano Version)
  type: MusicAlbum
  date published: 2021-04-05
album: Lush Life (Piano Version)
  type: MusicAlbum
  date published: 2021-04-12
album: Cry me a river (Piano Version)
  type: MusicAlbum
  date published: 2021-04-15
album: Without You (Piano Version)
  type: MusicAlbum
  date published: 2021-04-19
album: Wicked Game (Piano Version)
  type: MusicAlbum
  date published: 2021-04-19
album: Life on Mars (Piano Version)
  type: MusicAlbum
  date published: 2021-04-22
album: Photograph (Piano Version)
  type: MusicAlbum
  date published: 2021-04-26
album: Shape of my Heart (Piano Version)
  type: MusicAlbum
  date published: 2021-04-29
album: Fields of Gold (Piano Version)
  type: MusicAlbum
  date published: 2021-04-29