Lessus
type: MusicGroup
popularity: 2
followers: 785
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xcdd17879b86041e82e6785d8f53c6b3d463e6982cfc5d8b9d766c4d825256273
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954603
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954603
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/c158825f-61b3-4a9b-9f5b-df0ecc98cee3.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/c158825f-61b3-4a9b-9f5b-df0ecc98cee3.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/c158825f-61b3-4a9b-9f5b-df0ecc98cee3
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-20T21:47:54Z
additional property: OTSCanonicalRecord
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 0xcdd17879b86041e82e6785d8f53c6b3d463e6982cfc5d8b9d766c4d825256273. Chain 2 (Bitcoin): anchored in block 954603 (2026-06-20T21:47:54Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/c158825f-61b3-4a9b-9f5b-df0ecc98cee3.json and https://artists.proofprofile.net/proofs/artist/c158825f-61b3-4a9b-9f5b-df0ecc98cee3.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-20T21:47:54Z
album: Time to Be Late
  type: MusicAlbum
  date published: 2012-12-12
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  type: MusicAlbum
  date published: 2022-10-05
album: Bigger Storm
  type: MusicAlbum
  date published: 2022-11-02
album: Hometown
  type: MusicAlbum
  date published: 2022-12-01
album: Day And Night
  type: MusicAlbum
  date published: 2023-04-28
album: Blame
  type: MusicAlbum
  date published: 2023-05-26
album: Boogieman
  type: MusicAlbum
  date published: 2023-06-30
album: From Now On
  type: MusicAlbum
  date published: 2024-04-26