Leftover Lemons
type: MusicGroup
genre: post-grunge
popularity: 2
followers: 355
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x3fa2910060ff1bb3c3b84f0f2d5085f039fda6cb9c804ebe36c60d2106350e6e
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953867
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953867
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/056b81a3-c0da-450d-8cc1-5b18cc979de2.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/056b81a3-c0da-450d-8cc1-5b18cc979de2.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/056b81a3-c0da-450d-8cc1-5b18cc979de2
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T01:09:47Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x3fa2910060ff1bb3c3b84f0f2d5085f039fda6cb9c804ebe36c60d2106350e6e","name":"Leftover Lemons","registered_at":"2026-06-15T15:28:42Z","symbol":"NIM0751368","token_address":"0xd7da643cc58d98574cae7a17a529270864a44b3e","type":"artist","uuid":"056b81a3-c0da-450d-8cc1-5b18cc979de2"}
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 0x3fa2910060ff1bb3c3b84f0f2d5085f039fda6cb9c804ebe36c60d2106350e6e. Chain 2 (Bitcoin): anchored in block 953867 (2026-06-16T01:09:47Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/056b81a3-c0da-450d-8cc1-5b18cc979de2.json and https://artists.proofprofile.net/proofs/artist/056b81a3-c0da-450d-8cc1-5b18cc979de2.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-16T01:09:47Z
  text: {"copyright_id":"0x3fa2910060ff1bb3c3b84f0f2d5085f039fda6cb9c804ebe36c60d2106350e6e","name":"Leftover Lemons","registered_at":"2026-06-15T15:28:42Z","symbol":"NIM0751368","token_address":"0xd7da643cc58d98574cae7a17a529270864a44b3e","type":"artist","uuid":"056b81a3-c0da-450d-8cc1-5b18cc979de2"}
album: Interesting
  type: MusicAlbum
  date published: 2021-08-17
album: G.
  type: MusicAlbum
  date published: 2021-12-06
album: Don't be upset
  type: MusicAlbum
  date published: 2022-05-09
album: Direction Key
  type: MusicAlbum
  date published: 2023-08-08
album: Moth
  type: MusicAlbum
  date published: 2024-12-13
  track: Moth
    type: MusicRecording
    duration: PT5M29S
    duration ms: 329909
    explicit: false
    by artist: Leftover Lemons
    in album: Moth
      type: MusicAlbum
      date published: 2024-12-13
    genre: post-grunge
    isrc code: SE6SA2483230
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-21T08:04:16+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xcb9100ff9d68829aee0ab34449ae634116eb5f3289e4f13d0166b1dc7fc33e63
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958985
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958985
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/SE6SA2483230
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-21T08:39:15Z
    additional property: OTSVerifyInstructions
      type: PropertyValue
      value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 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. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp 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 0xcb9100ff9d68829aee0ab34449ae634116eb5f3289e4f13d0166b1dc7fc33e63. Chain 2 (Bitcoin): anchored in block 958985 (2026-07-21T08:39:15Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/SE6SA2483230.
      date published: 2026-07-21T08:39:15Z
    audio: Moth
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 145.004
      additional property: Musical Key
        type: PropertyValue
        value: 0
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 3
      additional property: Danceability
        type: PropertyValue
        value: 0.356
      additional property: Energy
        type: PropertyValue
        value: 0.442
      additional property: Speechiness
        type: PropertyValue
        value: 0.03
      additional property: Acousticness
        type: PropertyValue
        value: 0.075
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.479
      additional property: Liveness
        type: PropertyValue
        value: 0.343
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.039
      additional property: Loudness (dB)
        type: PropertyValue
        value: -8.897
      additional property: Key Name
        type: PropertyValue
        value: C
      additional property: Mode Name
        type: PropertyValue
        value: Major