Leaders of the New School
type: MusicGroup
genre: east coast hip hop
description: Leaders of the New School was an American hip hop group based in Long Island, New York. History 1986–1990: Early Years In 1984, Leaders of the New School was formed by Long Island natives Charlie Br
popularity: 29
followers: 107614
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
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  value: https://explorer.copyrightchains.com/tx/0x21c06b76a541a69d9dc6df89353d9d832836aa43a6c62370e440b52fe88416f9
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953407
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953407
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/a41e9c5d-9719-46c7-9ca8-2ace7371e590.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/a41e9c5d-9719-46c7-9ca8-2ace7371e590.json
additional property: OTSVerificationAPI
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  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/a41e9c5d-9719-46c7-9ca8-2ace7371e590
additional property: OTSTimestamp
  type: PropertyValue
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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
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21c06b76a541a69d9dc6df89353d9d832836aa43a6c62370e440b52fe88416f9. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/a41e9c5d-9719-46c7-9ca8-2ace7371e590.json and https://artists.proofprofile.net/proofs/artist/a41e9c5d-9719-46c7-9ca8-2ace7371e590.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-12T19:24:56Z
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album: A Future Without A Past
  type: MusicAlbum
  date published: 1991
  track: Too Much on My Mind
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    duration: PT4M27S
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    explicit: false
    by artist: Leaders of the New School
    in album: A Future Without A Past
      type: MusicAlbum
      date published: 1991
    genre: east coast hip hop
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    additional property: CopyrightStatus
      type: PropertyValue
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    additional property: OTSBitcoinBlock
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    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
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    additional property: OTSVerificationAPI
      type: PropertyValue
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    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-05T18:48:28Z
    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
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      description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe03edb92d72003abc7535e27bf846f2cf4539e5af01717216fb12bda8b44a0e0. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/USEE19100057.
      date published: 2026-07-05T18:48:28Z
    audio: Too Much on My Mind
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      additional property: Danceability
        type: PropertyValue
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      additional property: Speechiness
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      additional property: Liveness
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      additional property: Valence (Positivity)
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      additional property: Mode Name
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  track: What's the Pinnocchio Theory
    type: MusicRecording
    duration: PT3M43S
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    explicit: false
    by artist: Leaders of the New School
    in album: A Future Without A Past
      type: MusicAlbum
      date published: 1991
    genre: east coast hip hop
    isrc code: USEE19100058
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
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    additional property: OTSBitcoinBlock
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      value: https://blockstream.info/api/block-height/956545
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USEE19100058
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-03T19:59:51Z
    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 0x734557fd561ca195539d01d487d71570ae953abbaf569af026ea861b018ba07f. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/USEE19100058.
      date published: 2026-07-03T19:59:51Z
    audio: What's the Pinnocchio Theory
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      additional property: Danceability
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      additional property: Energy
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      additional property: Speechiness
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      additional property: Acousticness
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      additional property: Instrumentalness
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      additional property: Liveness
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      additional property: Valence (Positivity)
      additional property: Loudness (dB)
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      additional property: Mode Name
  track: Sound of the Zeekers
  track: Feminne Fatt
  track: Transformers
  track: Teachers Don't Teach Us Nonsense
album: Sobb Story
album: International Zone Coaster
album: T.I.M.E.
album: What's Next
track: Keep It Movin' (feat. Rampage the Last Boy Scout, Dinco, Milo and Charlie Brown)

Valence (Positivity)
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value: 0.706

Loudness (dB)
type: PropertyValue
value: -11.899

Key Name
type: PropertyValue
value: A

Mode Name
type: PropertyValue
value: Major

Sound of the Zeekers
type: MusicRecording
duration: PT5M16S
duration ms: 316706
explicit: false
by artist: Leaders of the New School
in album: A Future Without A Past
  type: MusicAlbum
  date published: 1991
genre: east coast hip hop
isrc code: USEE19100061
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
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  value: 2026-07-16T05:25:32+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xc6463aabc63892b0135b0c17be850cfe1c0f50c820b28cd134d5576cfd627438
additional property: OTSHash
additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/958245
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USEE19100061
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-16T08:26:37Z
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 0xc6463aabc63892b0135b0c17be850cfe1c0f50c820b28cd134d5576cfd627438. Chain 2 (Bitcoin): anchored in block 958245 (2026-07-16T08:26:37Z), 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/USEE19100061.
  date published: 2026-07-16T08:26:37Z
audio: Sound of the Zeekers
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
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  additional property: Musical Key
    type: PropertyValue
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  additional property: Mode (Major/Minor)
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    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 4
  additional property: Danceability
    type: PropertyValue
    value: 0.846
  additional property: Energy
    type: PropertyValue
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  additional property: Speechiness
    type: PropertyValue
    value: 0.218
  additional property: Acousticness
    type: PropertyValue
    value: 0.627
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.156
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.69
  additional property: Loudness (dB)
    type: PropertyValue
    value: -10.238
  additional property: Key Name
    type: PropertyValue
    value: C#
  additional property: Mode Name
    type: PropertyValue
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Feminne Fatt
type: MusicRecording
duration: PT3M8S
duration ms: 188466
explicit: false
by artist: Leaders of the New School
in album: A Future Without A Past
  type: MusicAlbum
  date published: 1991
genre: east coast hip hop
isrc code: USEE19100063
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-20T15:15:25+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xdaff58a2289e79cb0943eb70349f3e6e74dd8b03c52c8ab062647bd9867d1aa2
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 958903
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/958903
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USEE19100063
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-20T18:16:13Z
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 0xdaff58a2289e79cb0943eb70349f3e6e74dd8b03c52c8ab062647bd9867d1aa2. Chain 2 (Bitcoin): anchored in block 958903 (2026-07-20T18:16:13Z), 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/USEE19100063.
  date published: 2026-07-20T18:16:13Z
audio: Feminne Fatt
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
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  additional property: Musical Key
    type: PropertyValue
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  additional property: Mode (Major/Minor)
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  additional property: Time Signature
    type: PropertyValue
    value: 4
  additional property: Danceability
    type: PropertyValue
    value: 0.733
  additional property: Energy
    type: PropertyValue
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  additional property: Speechiness
    type: PropertyValue
    value: 0.362
  additional property: Acousticness
    type: PropertyValue
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  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
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  additional property: Valence (Positivity)
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  additional property: Loudness (dB)
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Transformers
type: MusicRecording
duration: PT4M0S
duration ms: 240133
explicit: false
by artist: Leaders of the New School
in album: A Future Without A Past
  type: MusicAlbum
  date published: 1991
genre: east coast hip hop
isrc code: USEE19100064
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-22T05:42:46+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x84b35304cf5f9194d6c433f23fb1bf695767090e7023ee833d09278857b134ea
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
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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/USEE19100064
additional property: OTSTimestamp
  type: PropertyValue
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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 0x84b35304cf5f9194d6c433f23fb1bf695767090e7023ee833d09278857b134ea. 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/USEE19100064.
  date published: 2026-07-22T06:33:30Z
audio: Transformers
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  additional property: Musical Key
    type: PropertyValue
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  additional property: Mode (Major/Minor)
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  additional property: Time Signature
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  additional property: Danceability
    type: PropertyValue
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  additional property: Energy
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  additional property: Speechiness
    type: PropertyValue
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  additional property: Acousticness
    type: PropertyValue
    value: 0.097
  additional property: Instrumentalness
    type: PropertyValue
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  additional property: Liveness
    type: PropertyValue
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  additional property: Valence (Positivity)
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  additional property: Loudness (dB)
    type: PropertyValue
    value: -12.849
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    type: PropertyValue
    value: E
  additional property: Mode Name
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Teachers Don't Teach Us Nonsense
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duration: PT4M6S
duration ms: 246400
explicit: false
by artist: Leaders of the New School
in album: A Future Without A Past
  type: MusicAlbum
  date published: 1991
genre: east coast hip hop
isrc code: USEE19100069
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-04T17:06:26+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xaafb86e7490357c2793a01f585ebec62c44f6bd6461e865822fc98242900e812
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 956725
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/956725
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USEE19100069
additional property: OTSTimestamp
  type: PropertyValue
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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 0xaafb86e7490357c2793a01f585ebec62c44f6bd6461e865822fc98242900e812. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/USEE19100069.
  date published: 2026-07-05T01:12:41Z
audio: Teachers Don't Teach Us Nonsense
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    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.235
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.838
  additional property: Loudness (dB)
    type: PropertyValue
    value: -11.396
  additional property: Key Name
    type: PropertyValue
    value: C
  additional property: Mode Name
    type: PropertyValue
    value: Major

Sobb Story
type: MusicAlbum
date published: 1991

International Zone Coaster
type: MusicAlbum
date published: 1992-01-01

T.I.M.E.
type: MusicAlbum
date published: 1993-09-21
track: Eternal
  type: MusicRecording
  duration: PT1M28S
  duration ms: 88333
  explicit: false
  by artist: Leaders of the New School
  in album: T.I.M.E.
    type: MusicAlbum
    date published: 1993-09-21
  genre: east coast hip hop
  isrc code: USEE19300020
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-19T09:02:39+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0xe9904c2abd014db810405dac8785b87a850603cb2dc094d781d2519adf7bf02e
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 958711
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/958711
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USEE19300020
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-19T09:26:32Z
  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 0xe9904c2abd014db810405dac8785b87a850603cb2dc094d781d2519adf7bf02e. Chain 2 (Bitcoin): anchored in block 958711 (2026-07-19T09:26:32Z), 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/USEE19300020.
    date published: 2026-07-19T09:26:32Z
  audio: Eternal
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 99.603
    additional property: Musical Key
      type: PropertyValue
      value: 9
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 1
    additional property: Time Signature
      type: PropertyValue
      value: 4
    additional property: Danceability
      type: PropertyValue
      value: 0.549
    additional property: Energy
      type: PropertyValue
      value: 0.722
    additional property: Speechiness
      type: PropertyValue
      value: 0.126
    additional property: Acousticness
      type: PropertyValue
      value: 0.049
    additional property: Instrumentalness
      type: PropertyValue
      value: 0.931
    additional property: Liveness
      type: PropertyValue
      value: 0.784
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.506
    additional property: Loudness (dB)
      type: PropertyValue
      value: -11.122
    additional property: Key Name
      type: PropertyValue
      value: A
    additional property: Mode Name
      type: PropertyValue
      value: Major
track: Daily Reminder
  type: MusicRecording
  duration: PT3M38S
  duration ms: 218506
  explicit: false
  by artist: Leaders of the New School
  in album: T.I.M.E.
    type: MusicAlbum
    date published: 1993-09-21
  genre: east coast hip hop
  isrc code: USEE19300024
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-17T09:57:53+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0xe7a8cc2c1cb13c061b8a0a5c73607f1970386b4a957a3ebd438d2ea21c76d745
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 958395
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/958395
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USEE19300024
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-17T10:10:33Z
  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 0xe7a8cc2c1cb13c061b8a0a5c73607f1970386b4a957a3ebd438d2ea21c76d745. Chain 2 (Bitcoin): anchored in block 958395 (2026-07-17T10:10:33Z), 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/USEE19300024.
    date published: 2026-07-17T10:10:33Z
  audio: Daily Reminder
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 89.984
    additional property: Musical Key
      type: PropertyValue
      value: 1
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 0
    additional property: Time Signature
      type: PropertyValue
      value: 4
    additional property: Danceability
      type: PropertyValue
      value: 0.739
    additional property: Energy
      type: PropertyValue
      value: 0.869
    additional property: Speechiness
      type: PropertyValue
      value: 0.196
    additional property: Acousticness
      type: PropertyValue
      value: 0.008
    additional property: Instrumentalness
      type: PropertyValue
      value: 0.014
    additional property: Liveness
      type: PropertyValue
      value: 0.066
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.698
    additional property: Loudness (dB)
      type: PropertyValue
      value: -8.956
    additional property: Key Name
      type: PropertyValue
      value: C#
    additional property: Mode Name
      type: PropertyValue
      value: Minor
track: A Quarter to Cutthroat
  type: MusicRecording
  duration: PT4M52S
  duration ms: 292800
  explicit: false
  by artist: Leaders of the New School
  in album: T.I.M.E.
    type: MusicAlbum
    date published: 1993-09-21
  genre: east coast hip hop
  isrc code: USEE19300025
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-15T22:14:38+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x897a988b9e0db6a5c9d6134ecac1f8f9891563cf85060ff8365437eacb7bffaf
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 958208
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/958208
  additional property: OTSVerificationAPI
  additional property: OTSTimestamp
  additional property: OTSVerifyInstructions
  subject of: OpenTimestamps Proof of Existence
  audio: A Quarter to Cutthroat
track: Connections
track: Time Will Tell
track: Bass Is Loaded
track: Zearocks
track: The Difference

OTSVerificationAPI
type: PropertyValue
value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USEE19300025

OTSTimestamp
type: PropertyValue
value: 2026-07-15T22:40:25Z

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

OpenTimestamps Proof of Existence
type: DigitalDocument
encoding format: application/vnd.opentimestamps.ots
description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x897a988b9e0db6a5c9d6134ecac1f8f9891563cf85060ff8365437eacb7bffaf. Chain 2 (Bitcoin): anchored in block 958208 (2026-07-15T22:40:25Z), 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/USEE19300025.
date published: 2026-07-15T22:40:25Z

A Quarter to Cutthroat
type: AudioObject
additional property: Tempo (BPM)
  type: PropertyValue
  value: 103.927
additional property: Musical Key
  type: PropertyValue
  value: 4
additional property: Mode (Major/Minor)
  type: PropertyValue
  value: 0
additional property: Time Signature
  type: PropertyValue
  value: 4
additional property: Danceability
  type: PropertyValue
  value: 0.767
additional property: Energy
  type: PropertyValue
  value: 0.716
additional property: Speechiness
  type: PropertyValue
  value: 0.366
additional property: Acousticness
  type: PropertyValue
  value: 0.019
additional property: Instrumentalness
  type: PropertyValue
  value: 0
additional property: Liveness
  type: PropertyValue
  value: 0.232
additional property: Valence (Positivity)
  type: PropertyValue
  value: 0.571
additional property: Loudness (dB)
  type: PropertyValue
  value: -9.593
additional property: Key Name
  type: PropertyValue
  value: E
additional property: Mode Name
  type: PropertyValue
  value: Minor

Connections
type: MusicRecording
duration: PT4M3S
duration ms: 243666
explicit: false
by artist: Leaders of the New School
in album: T.I.M.E.
  type: MusicAlbum
  date published: 1993-09-21
genre: east coast hip hop
isrc code: USEE19300026
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-18T18:50:43+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x53d5de23a3d7866c0c28c242252252845edf9ab1ab02cbae2e6f3801f5b4a290
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 958601
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/958601
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USEE19300026
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-18T19:27:02Z
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 0x53d5de23a3d7866c0c28c242252252845edf9ab1ab02cbae2e6f3801f5b4a290. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/USEE19300026.
  date published: 2026-07-18T19:27:02Z
audio: Connections
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 103.056
  additional property: Musical Key
    type: PropertyValue
    value: 6
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 0
  additional property: Time Signature
    type: PropertyValue
    value: 4
  additional property: Danceability
    type: PropertyValue
    value: 0.876
  additional property: Energy
    type: PropertyValue
    value: 0.654
  additional property: Speechiness
    type: PropertyValue
    value: 0.424
  additional property: Acousticness
    type: PropertyValue
    value: 0.098
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.253
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.833
  additional property: Loudness (dB)
    type: PropertyValue
    value: -10.739
  additional property: Key Name
    type: PropertyValue
    value: F#
  additional property: Mode Name
    type: PropertyValue
    value: Minor

Time Will Tell
type: MusicRecording
duration: PT4M58S
duration ms: 298333
explicit: false
by artist: Leaders of the New School
in album: T.I.M.E.
  type: MusicAlbum
  date published: 1993-09-21
genre: east coast hip hop
isrc code: USEE19300029
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-03T22:12:45+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xfd5c8fc279f12907f0000a1313101d4bad76f58bc363000552fef8ffd262e9d8
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 956634
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/956634
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USEE19300029
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-04T10:04:33Z
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 0xfd5c8fc279f12907f0000a1313101d4bad76f58bc363000552fef8ffd262e9d8. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/USEE19300029.
  date published: 2026-07-04T10:04:33Z
audio: Time Will Tell
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 95.769
  additional property: Musical Key
    type: PropertyValue
    value: 6
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 0
  additional property: Time Signature
    type: PropertyValue
    value: 4
  additional property: Danceability
    type: PropertyValue
    value: 0.855
  additional property: Energy
    type: PropertyValue
    value: 0.401
  additional property: Speechiness
    type: PropertyValue
    value: 0.374
  additional property: Acousticness
    type: PropertyValue
    value: 0.142
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.41
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.575
  additional property: Loudness (dB)
    type: PropertyValue
    value: -13.875
  additional property: Key Name
    type: PropertyValue
    value: F#
  additional property: Mode Name
    type: PropertyValue
    value: Minor

Bass Is Loaded
type: MusicRecording
duration: PT4M30S
duration ms: 270560
explicit: false
by artist: Leaders of the New School
in album: T.I.M.E.
  type: MusicAlbum
  date published: 1993-09-21
genre: east coast hip hop
isrc code: USEE19300030
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-04T03:41:54+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x3fa067ce4855932183e75cea7ea8b7e795f4af79331762ddf3e4b3e9f8983f71
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 956634
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/956634
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USEE19300030
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-04T10:04:33Z
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 0x3fa067ce4855932183e75cea7ea8b7e795f4af79331762ddf3e4b3e9f8983f71. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/USEE19300030.
  date published: 2026-07-04T10:04:33Z
audio: Bass Is Loaded
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 98.001
  additional property: Musical Key
    type: PropertyValue
    value: 10
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 0
  additional property: Time Signature
    type: PropertyValue
    value: 4
  additional property: Danceability
    type: PropertyValue
    value: 0.866
  additional property: Energy
    type: PropertyValue
    value: 0.415
  additional property: Speechiness
    type: PropertyValue
    value: 0.161
  additional property: Acousticness
    type: PropertyValue
    value: 0.007
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.003
  additional property: Liveness
    type: PropertyValue
    value: 0.051
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.225
  additional property: Loudness (dB)
    type: PropertyValue
    value: -9.39
  additional property: Key Name
    type: PropertyValue
    value: Bb
  additional property: Mode Name
    type: PropertyValue
    value: Minor

Zearocks
type: MusicRecording
duration: PT1M24S
duration ms: 84733
explicit: false
by artist: Leaders of the New School
in album: T.I.M.E.
  type: MusicAlbum
  date published: 1993-09-21
genre: east coast hip hop
isrc code: USEE19300034
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-04T09:03:23+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xf7f325abedbf257f701becec42f1a4f7da34a5cb3e0b249eaea5a36ceb1f8c56
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 956634
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/956634
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USEE19300034
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-04T10:04:33Z
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 0xf7f325abedbf257f701becec42f1a4f7da34a5cb3e0b249eaea5a36ceb1f8c56. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/USEE19300034.
  date published: 2026-07-04T10:04:33Z
audio: Zearocks
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 101.909
  additional property: Musical Key
    type: PropertyValue
    value: 10
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 0
  additional property: Time Signature
    type: PropertyValue
    value: 4
  additional property: Danceability
    type: PropertyValue
    value: 0.775
  additional property: Energy
    type: PropertyValue
    value: 0.729
  additional property: Speechiness
    type: PropertyValue
    value: 0.039
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The Difference
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What's Next
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date published: 2006-03-28

Keep It Movin' (feat. Rampage the Last Boy Scout, Dinco, Milo and Charlie Brown)
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  date published: 2026-06-13T13:32:09Z
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