Letti Sound
type: MusicGroup
popularity: 10
followers: 14
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x2170cd6c1a0b30be46f41b8e72527bac4b150817df6f884bd7f2d4f2aa382789
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954784
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954784
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/f778e57a-bfcd-40d4-9414-8184d6a6464d.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/f778e57a-bfcd-40d4-9414-8184d6a6464d.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/f778e57a-bfcd-40d4-9414-8184d6a6464d
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-22T02:53:59Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x2170cd6c1a0b30be46f41b8e72527bac4b150817df6f884bd7f2d4f2aa382789","name":"Letti Sound","registered_at":"2026-06-21T15:40:46Z","symbol":"NIM1962159","token_address":"0x027b6b5295c3c50a43958c06c5aaed250bfbe1b1","type":"artist","uuid":"f778e57a-bfcd-40d4-9414-8184d6a6464d"}
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 0x2170cd6c1a0b30be46f41b8e72527bac4b150817df6f884bd7f2d4f2aa382789. Chain 2 (Bitcoin): anchored in block 954784 (2026-06-22T02:53:59Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/f778e57a-bfcd-40d4-9414-8184d6a6464d.json and https://artists.proofprofile.net/proofs/artist/f778e57a-bfcd-40d4-9414-8184d6a6464d.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-22T02:53:59Z
  text: {"copyright_id":"0x2170cd6c1a0b30be46f41b8e72527bac4b150817df6f884bd7f2d4f2aa382789","name":"Letti Sound","registered_at":"2026-06-21T15:40:46Z","symbol":"NIM1962159","token_address":"0x027b6b5295c3c50a43958c06c5aaed250bfbe1b1","type":"artist","uuid":"f778e57a-bfcd-40d4-9414-8184d6a6464d"}