The Single Digits
type: MusicGroup
genre: skate punk
popularity: 4
followers: 239
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xc4349eae37ed22cfea4e818f8d2b259bd02601a88d32a3a55c4406ce93dc34ab
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954569
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954569
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/b12a10cc-a8cd-4a48-91d3-dc04e83a0b0b.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/b12a10cc-a8cd-4a48-91d3-dc04e83a0b0b.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/b12a10cc-a8cd-4a48-91d3-dc04e83a0b0b
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-20T14:36:29Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xc4349eae37ed22cfea4e818f8d2b259bd02601a88d32a3a55c4406ce93dc34ab","name":"The Single Digits","registered_at":"2026-06-20T11:58:49Z","symbol":"NIM1607915","token_address":"0x3bced35979e232e1281c4cf3679ba0f919ab1a22","type":"artist","uuid":"b12a10cc-a8cd-4a48-91d3-dc04e83a0b0b"}
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 0xc4349eae37ed22cfea4e818f8d2b259bd02601a88d32a3a55c4406ce93dc34ab. Chain 2 (Bitcoin): anchored in block 954569 (2026-06-20T14:36:29Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/b12a10cc-a8cd-4a48-91d3-dc04e83a0b0b.json and https://artists.proofprofile.net/proofs/artist/b12a10cc-a8cd-4a48-91d3-dc04e83a0b0b.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-20T14:36:29Z
  text: {"copyright_id":"0xc4349eae37ed22cfea4e818f8d2b259bd02601a88d32a3a55c4406ce93dc34ab","name":"The Single Digits","registered_at":"2026-06-20T11:58:49Z","symbol":"NIM1607915","token_address":"0x3bced35979e232e1281c4cf3679ba0f919ab1a22","type":"artist","uuid":"b12a10cc-a8cd-4a48-91d3-dc04e83a0b0b"}
album: Friday Night Fights
  type: MusicAlbum
  date published: 2022-12-02
  track: Can't Stand It
    type: MusicRecording
    duration: PT3M0S
    duration ms: 180000
    explicit: false
    by artist: The Single Digits
    in album: Friday Night Fights
      type: MusicAlbum
      date published: 2022-12-02
    genre: skate punk
    isrc code: USL4Q2256421
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-21T01:18:45+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x31c63e120ec36d9ceb8126707612b2598bcd0887834d9cdea7b552b2d3a77a1b
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958951
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958951
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USL4Q2256421
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-21T02:01:41Z
    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 0x31c63e120ec36d9ceb8126707612b2598bcd0887834d9cdea7b552b2d3a77a1b. Chain 2 (Bitcoin): anchored in block 958951 (2026-07-21T02:01:41Z), 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/USL4Q2256421.
      date published: 2026-07-21T02:01:41Z
    audio: Can't Stand It
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 170.031
      additional property: Musical Key
        type: PropertyValue
        value: 11
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.318
      additional property: Energy
        type: PropertyValue
        value: 0.806
      additional property: Speechiness
        type: PropertyValue
        value: 0.066
      additional property: Acousticness
        type: PropertyValue
        value: 0.001
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.003
      additional property: Liveness
        type: PropertyValue
        value: 0.239
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.516
      additional property: Loudness (dB)
        type: PropertyValue
        value: -9.976
      additional property: Key Name
        type: PropertyValue
        value: B
      additional property: Mode Name
        type: PropertyValue
        value: Minor
album: Saturday Fight Fever
  type: MusicAlbum
  date published: 2023-11-03
album: Sunday Morning Throwing Down
  type: MusicAlbum
  date published: 2024-07-19
album: Shadows and Silhouettes
  type: MusicAlbum
  date published: 2025-07-04