Lunchbag Letterman
type: MusicGroup
popularity: 2
followers: 25
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xc6c55272bd0c0c38530c7d3f283c3764927ac1f43290f18371c1a0a73150e818
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/a13632ba-36f1-4e3f-854e-969d2fd7024c.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/a13632ba-36f1-4e3f-854e-969d2fd7024c.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/a13632ba-36f1-4e3f-854e-969d2fd7024c
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-20T07:04:44Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xc6c55272bd0c0c38530c7d3f283c3764927ac1f43290f18371c1a0a73150e818","name":"Lunchbag Letterman","registered_at":"2026-06-20T05:33:03Z","symbol":"NIM1527607","token_address":"0x0e38e793dd64a012b2ae8bfb3b6d645dc464e292","type":"artist","uuid":"a13632ba-36f1-4e3f-854e-969d2fd7024c"}
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 0xc6c55272bd0c0c38530c7d3f283c3764927ac1f43290f18371c1a0a73150e818. 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/a13632ba-36f1-4e3f-854e-969d2fd7024c.json and https://artists.proofprofile.net/proofs/artist/a13632ba-36f1-4e3f-854e-969d2fd7024c.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-20T07:04:44Z
  text: {"copyright_id":"0xc6c55272bd0c0c38530c7d3f283c3764927ac1f43290f18371c1a0a73150e818","name":"Lunchbag Letterman","registered_at":"2026-06-20T05:33:03Z","symbol":"NIM1527607","token_address":"0x0e38e793dd64a012b2ae8bfb3b6d645dc464e292","type":"artist","uuid":"a13632ba-36f1-4e3f-854e-969d2fd7024c"}
album: Lunchbag, Vol. 1
  type: MusicAlbum
  date published: 2023-03-21
album: The Bugs EP
  type: MusicAlbum
  date published: 2023-07-28
album: Lunchbag, Vol. 2
  type: MusicAlbum
  date published: 2024-01-23
album: I Know That U Hate Me EP
  type: MusicAlbum
  date published: 2024-05-09
album: Today Again?
  type: MusicAlbum
  date published: 2024-05-24
album: Everything Stinks EP
  type: MusicAlbum
  date published: 2025-01-19
album: Lunchbag, Vol. 3
  type: MusicAlbum
  date published: 2025-01-19