William April
type: MusicGroup
popularity: 10
followers: 49
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xf6dec3f7840204a477799ea9f08cc8179181af007e96ad76c5c267696aba6024
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/8a0c8491-f2ca-44d8-899f-5c5e1efc31e4.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/8a0c8491-f2ca-44d8-899f-5c5e1efc31e4.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/8a0c8491-f2ca-44d8-899f-5c5e1efc31e4
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-19T03:22:39Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xf6dec3f7840204a477799ea9f08cc8179181af007e96ad76c5c267696aba6024","name":"William April","registered_at":"2026-06-17T13:35:35Z","symbol":"NIM1411509","token_address":"0x7d5ade2c2a66945d9694d7db7eeeb7666d1838a7","type":"artist","uuid":"8a0c8491-f2ca-44d8-899f-5c5e1efc31e4"}
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
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6dec3f7840204a477799ea9f08cc8179181af007e96ad76c5c267696aba6024. 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/8a0c8491-f2ca-44d8-899f-5c5e1efc31e4.json and https://artists.proofprofile.net/proofs/artist/8a0c8491-f2ca-44d8-899f-5c5e1efc31e4.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-19T03:22:39Z
  text: {"copyright_id":"0xf6dec3f7840204a477799ea9f08cc8179181af007e96ad76c5c267696aba6024","name":"William April","registered_at":"2026-06-17T13:35:35Z","symbol":"NIM1411509","token_address":"0x7d5ade2c2a66945d9694d7db7eeeb7666d1838a7","type":"artist","uuid":"8a0c8491-f2ca-44d8-899f-5c5e1efc31e4"}
album: Chosen
  type: MusicAlbum
  date published: 2011-11-13
album: Following You
  type: MusicAlbum
  date published: 2020-10-09
album: Breathe Again
  type: MusicAlbum
  date published: 2021-03-22
album: Breathe Again
  type: MusicAlbum
  date published: 2021-03-22
album: Immanuel
  type: MusicAlbum
  date published: 2021-06-11
album: I Just Want You
  type: MusicAlbum
  date published: 2021-12-03
album: All I Need Is You
  type: MusicAlbum
  date published: 2021-12-31
album: All I Need Is You
  type: MusicAlbum
  date published: 2021-12-31
album: Merciful God 2022
  type: MusicAlbum
  date published: 2022-08-19
album: The Way I Feel for You
  type: MusicAlbum
  date published: 2022-09-30
album: I Miss You (Remix)
  type: MusicAlbum
  date published: 2022-11-11
album: I Just Want You
  type: MusicAlbum
  date published: 2022-12-02
album: Into Love
  type: MusicAlbum
  date published: 2023
album: Warrr Family
  type: MusicAlbum
  date published: 2023-01-20
  track: Warrr Family
    type: MusicRecording
    duration: PT2M2S
    duration ms: 122279
    explicit: false
    by artist: William April
    in album: Warrr Family
      type: MusicAlbum
      date published: 2023-01-20
    isrc code: QZSR42190387
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-18T12:05:50+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x3d947be1b40a8a11be0e5ce7f7a7292bb1e8a88b0bb13552faf289ec57885e1e
    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/QZSR42190387
    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
    subject of: OpenTimestamps Proof of Existence
      type: DigitalDocument
      encoding format: application/vnd.opentimestamps.ots
      description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d947be1b40a8a11be0e5ce7f7a7292bb1e8a88b0bb13552faf289ec57885e1e. 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/QZSR42190387.
      date published: 2026-07-18T19:27:02Z
    audio: Warrr Family
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 173.544
      additional property: Musical Key
        type: PropertyValue
        value: 7
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.515
      additional property: Energy
        type: PropertyValue
        value: 0.544
      additional property: Speechiness
        type: PropertyValue
        value: 0.129
      additional property: Acousticness
        type: PropertyValue
        value: 0.152
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.321
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.632
      additional property: Loudness (dB)
        type: PropertyValue
        value: -5.308
      additional property: Key Name
        type: PropertyValue
        value: G
      additional property: Mode Name
        type: PropertyValue
        value: Minor
album: Lekker
  type: MusicAlbum
  date published: 2024-03-01
  track: Lekker
    type: MusicRecording
    duration: PT2M5S
    duration ms: 125715
    explicit: false
    by artist: William April
    in album: Lekker
      type: MusicAlbum
      date published: 2024-03-01
    isrc code: GX8KD2411448
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-03T00:52:59+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x139a7f81b6721193ad6dc84e9c779112c8c27326569580d4465a3d3370665028
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 956422
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/956422
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GX8KD2411448
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-03T01:01:38Z
    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
    subject of: OpenTimestamps Proof of Existence
    audio: Lekker
album: Dance All Night

OpenTimestamps Proof of Existence
type: DigitalDocument
encoding format: application/vnd.opentimestamps.ots
description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x139a7f81b6721193ad6dc84e9c779112c8c27326569580d4465a3d3370665028. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/GX8KD2411448.
date published: 2026-07-03T01:01:38Z

Lekker
type: AudioObject
additional property: Tempo (BPM)
  type: PropertyValue
  value: 126.073
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: 0.794
additional property: Energy
  type: PropertyValue
  value: 0.876
additional property: Speechiness
  type: PropertyValue
  value: 0.123
additional property: Acousticness
  type: PropertyValue
  value: 0.224
additional property: Instrumentalness
  type: PropertyValue
  value: 0
additional property: Liveness
  type: PropertyValue
  value: 0.303
additional property: Valence (Positivity)
  type: PropertyValue
  value: 0.521
additional property: Loudness (dB)
  type: PropertyValue
  value: -5.265
additional property: Key Name
  type: PropertyValue
  value: Bb
additional property: Mode Name
  type: PropertyValue
  value: Minor

Dance All Night
type: MusicAlbum
date published: 2024-05-17
track: Dance All Night
  type: MusicRecording
  duration: PT3M34S
  duration ms: 214334
  explicit: false
  by artist: William April
  in album: Dance All Night
    type: MusicAlbum
    date published: 2024-05-17
  isrc code: GX8LE2491409
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-16T16:09:32+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0xf08c5f821139135c279e947b58eeffdb7b4fbd7ad2bf9e23769c8b8195f43f1e
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 958316
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/958316
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GX8LE2491409
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-16T23:04:28Z
  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
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf08c5f821139135c279e947b58eeffdb7b4fbd7ad2bf9e23769c8b8195f43f1e. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T23:04:28Z), 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/GX8LE2491409.
    date published: 2026-07-16T23:04:28Z
  audio: Dance All Night
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 111.995
    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: 0.697
    additional property: Energy
      type: PropertyValue
      value: 0.921
    additional property: Speechiness
      type: PropertyValue
      value: 0.036
    additional property: Acousticness
      type: PropertyValue
      value: 0.421
    additional property: Instrumentalness
      type: PropertyValue
      value: 0
    additional property: Liveness
      type: PropertyValue
      value: 0.152
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.639
    additional property: Loudness (dB)
      type: PropertyValue
      value: -4.767
    additional property: Key Name
      type: PropertyValue
      value: B
    additional property: Mode Name
      type: PropertyValue
      value: Minor