Lefty Fish
type: MusicGroup
genre: free jazz
genre: grindcore
genre: math rock
genre: noise rock
popularity: 5
followers: 1223
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x67e0c6a04abfb653e3b9b9bf6ef76446dae2e84df61c56f25a7a1573b36de09b
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954516
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954516
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/a10b12ba-0043-460d-b9b9-c27c94981f4e.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/a10b12ba-0043-460d-b9b9-c27c94981f4e.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/a10b12ba-0043-460d-b9b9-c27c94981f4e
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-20T07:04:44Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x67e0c6a04abfb653e3b9b9bf6ef76446dae2e84df61c56f25a7a1573b36de09b","name":"Lefty Fish","registered_at":"2026-06-20T05:49:34Z","symbol":"NIM1531296","token_address":"0x4329ab4e821e157218ef92ce5fb723d72f02fe7d","type":"artist","uuid":"a10b12ba-0043-460d-b9b9-c27c94981f4e"}
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 0x67e0c6a04abfb653e3b9b9bf6ef76446dae2e84df61c56f25a7a1573b36de09b. Chain 2 (Bitcoin): anchored in block 954516 (2026-06-20T07:04:44Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/a10b12ba-0043-460d-b9b9-c27c94981f4e.json and https://artists.proofprofile.net/proofs/artist/a10b12ba-0043-460d-b9b9-c27c94981f4e.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-20T07:04:44Z
  text: {"copyright_id":"0x67e0c6a04abfb653e3b9b9bf6ef76446dae2e84df61c56f25a7a1573b36de09b","name":"Lefty Fish","registered_at":"2026-06-20T05:49:34Z","symbol":"NIM1531296","token_address":"0x4329ab4e821e157218ef92ce5fb723d72f02fe7d","type":"artist","uuid":"a10b12ba-0043-460d-b9b9-c27c94981f4e"}
album: Lefty Fish
  type: MusicAlbum
  date published: 2016-03-31
album: Meat vs. Ginger
  type: MusicAlbum
  date published: 2017-09-19
album: Hello Kittie's Spank
  type: MusicAlbum
  date published: 2018-03-23