Sons Of Levin
type: MusicGroup
popularity: 17
followers: 1884
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xcf229891d6538126fa428a2e65cf2660ad2d371d2d1f290f5bda6ba269b4d87f
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953827
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953827
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/dec76af8-ebe1-4e76-8f6c-f7ab297f56ea.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/dec76af8-ebe1-4e76-8f6c-f7ab297f56ea.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/dec76af8-ebe1-4e76-8f6c-f7ab297f56ea
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-15T19:59:56Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xcf229891d6538126fa428a2e65cf2660ad2d371d2d1f290f5bda6ba269b4d87f","name":"Sons Of Levin","registered_at":"2026-06-15T03:50:51Z","symbol":"NIM0673131","token_address":"0xb30b8ee17857690c1b02e20f33cb7bd8eb397af7","type":"artist","uuid":"dec76af8-ebe1-4e76-8f6c-f7ab297f56ea"}
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 0xcf229891d6538126fa428a2e65cf2660ad2d371d2d1f290f5bda6ba269b4d87f. Chain 2 (Bitcoin): anchored in block 953827 (2026-06-15T19:59:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/dec76af8-ebe1-4e76-8f6c-f7ab297f56ea.json and https://artists.proofprofile.net/proofs/artist/dec76af8-ebe1-4e76-8f6c-f7ab297f56ea.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-15T19:59:56Z
  text: {"copyright_id":"0xcf229891d6538126fa428a2e65cf2660ad2d371d2d1f290f5bda6ba269b4d87f","name":"Sons Of Levin","registered_at":"2026-06-15T03:50:51Z","symbol":"NIM0673131","token_address":"0xb30b8ee17857690c1b02e20f33cb7bd8eb397af7","type":"artist","uuid":"dec76af8-ebe1-4e76-8f6c-f7ab297f56ea"}
album: Sons of Levin - EP
  type: MusicAlbum
  date published: 2019-06-21
album: Hard to Believe
  type: MusicAlbum
  date published: 2020-07-24
album: Open Road
  type: MusicAlbum
  date published: 2021-06-04
album: Blue/To The Ground
  type: MusicAlbum
  date published: 2021-11-12
album: Leo's Song
  type: MusicAlbum
  date published: 2022-02-04
album: On The Line
  type: MusicAlbum
  date published: 2024-11-20
  track: On The Line
    type: MusicRecording
    duration: PT6M19S
    duration ms: 379866
    explicit: false
    by artist: Sons Of Levin
    in album: On The Line
      type: MusicAlbum
      date published: 2024-11-20
    isrc code: QZWFU2441401
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-03T19:12:51+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x06781feb61ff7e4535b972e87cbbf4006b9e84e4343669db317a088259f3ce07
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 956551
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/956551
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZWFU2441401
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-03T21:18:05Z
    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 0x06781feb61ff7e4535b972e87cbbf4006b9e84e4343669db317a088259f3ce07. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/QZWFU2441401.
      date published: 2026-07-03T21:18:05Z
    audio: On The Line
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 103.99
      additional property: Musical Key
        type: PropertyValue
        value: 7
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.645
      additional property: Energy
        type: PropertyValue
        value: 0.667
      additional property: Speechiness
        type: PropertyValue
        value: 0.04
      additional property: Acousticness
        type: PropertyValue
        value: 0.007
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.385
      additional property: Liveness
        type: PropertyValue
        value: 0.118
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.332
      additional property: Loudness (dB)
        type: PropertyValue
        value: -11.792
      additional property: Key Name
        type: PropertyValue
        value: G
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: Slipping Away
  type: MusicAlbum
  date published: 2025-02-18
album: Ecclesiastes
  type: MusicAlbum
  date published: 2025-06-10