Ira Nepus Swing Jazz Quartet
type: MusicGroup
popularity: 5
followers: 17
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
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  value: https://explorer.copyrightchains.com/tx/0x134ab67277c3ed74796944fab9f42b3808d668ade7f4302c66cf384a8732440a
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954342
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954342
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/900c4df5-8fe8-46cc-a63b-b2b4f0f61e35.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/900c4df5-8fe8-46cc-a63b-b2b4f0f61e35.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/900c4df5-8fe8-46cc-a63b-b2b4f0f61e35
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-19T03:22:39Z
additional property: OTSCanonicalRecord
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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
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x134ab67277c3ed74796944fab9f42b3808d668ade7f4302c66cf384a8732440a. Chain 2 (Bitcoin): anchored in block 954342 (2026-06-19T03:22:39Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/900c4df5-8fe8-46cc-a63b-b2b4f0f61e35.json and https://artists.proofprofile.net/proofs/artist/900c4df5-8fe8-46cc-a63b-b2b4f0f61e35.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-19T03:22:39Z
  text: {"copyright_id":"0x134ab67277c3ed74796944fab9f42b3808d668ade7f4302c66cf384a8732440a","name":"Ira Nepus Swing Jazz Quartet","registered_at":"2026-06-17T15:55:56Z","symbol":"NIM1445023","token_address":"0x45d7147f919b5ed9c8ea5adde59608f0f7bc7a3c","type":"artist","uuid":"900c4df5-8fe8-46cc-a63b-b2b4f0f61e35"}
album: Ira Nepus Jazz Quartet
  type: MusicAlbum
  date published: 2020-11-07
  track: Dixieland Jump
    type: MusicRecording
    duration: PT0M43S
    duration ms: 43294
    explicit: false
    by artist: Ira Nepus Swing Jazz Quartet
    in album: Ira Nepus Jazz Quartet
      type: MusicAlbum
      date published: 2020-11-07
    isrc code: USQTM1740211
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-22T05:10:25+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xe2e154f6774bedd88855631bbd09a05dbd107861a0269320092ff1ce0e36a974
    additional property: OTSHash
    additional property: OTSBitcoinBlock
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    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/959105
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USQTM1740211
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-22T06:33:30Z
    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 0xe2e154f6774bedd88855631bbd09a05dbd107861a0269320092ff1ce0e36a974. Chain 2 (Bitcoin): anchored in block 959105 (2026-07-22T06:33:30Z), 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/USQTM1740211.
      date published: 2026-07-22T06:33:30Z
    audio: Dixieland Jump
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 121.257
      additional property: Musical Key
        type: PropertyValue
        value: 2
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.667
      additional property: Energy
        type: PropertyValue
        value: 0.432
      additional property: Speechiness
        type: PropertyValue
        value: 0.072
      additional property: Acousticness
        type: PropertyValue
        value: 0.951
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.893
      additional property: Liveness
        type: PropertyValue
        value: 0.118
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.077
      additional property: Loudness (dB)
        type: PropertyValue
        value: -14.726
      additional property: Key Name
        type: PropertyValue
        value: D
      additional property: Mode Name
        type: PropertyValue
        value: Major
  track: Romantic Jazz Interlude
    type: MusicRecording
    duration: PT1M32S
    duration ms: 92184
    explicit: false
    by artist: Ira Nepus Swing Jazz Quartet
    in album: Ira Nepus Jazz Quartet
      type: MusicAlbum
      date published: 2020-11-07
    isrc code: USQTM1740220
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-14T23:38:25+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x501f081bef44b66f26b0407fc93021b576ff07fd51fa8167b07bbb220fc27e22
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958079
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958079
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USQTM1740220
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-15T00:21:05Z
    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 0x501f081bef44b66f26b0407fc93021b576ff07fd51fa8167b07bbb220fc27e22. Chain 2 (Bitcoin): anchored in block 958079 (2026-07-15T00:21:05Z), 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/USQTM1740220.
      date published: 2026-07-15T00:21:05Z
    audio: Romantic Jazz Interlude
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 70.47
      additional property: Musical Key
        type: PropertyValue
        value: 9
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.483
      additional property: Energy
        type: PropertyValue
        value: 0.04
      additional property: Speechiness
        type: PropertyValue
        value: 0.045
      additional property: Acousticness
        type: PropertyValue
        value: 0.941
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.957
      additional property: Liveness
        type: PropertyValue
        value: 0.104
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.271
      additional property: Loudness (dB)
        type: PropertyValue
        value: -28.235
      additional property: Key Name
      additional property: Mode Name

Key Name
type: PropertyValue
value: A

Mode Name
type: PropertyValue
value: Minor