April Darling
type: MusicGroup
popularity: 3
followers: 308
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x21b5b49ea2b0667f8d22d7ad6faa751bd0dedf901fe78dc5aab66e9050fc8005
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954017
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954017
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/360f7a57-712b-47b5-b6b6-bc49f13a1829.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/360f7a57-712b-47b5-b6b6-bc49f13a1829.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/360f7a57-712b-47b5-b6b6-bc49f13a1829
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T23:38:33Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x21b5b49ea2b0667f8d22d7ad6faa751bd0dedf901fe78dc5aab66e9050fc8005","name":"April Darling","registered_at":"2026-06-16T08:25:27Z","symbol":"NIM0994095","token_address":"0x5454c68851ec82bdb8d2291a83e4049a43598c38","type":"artist","uuid":"360f7a57-712b-47b5-b6b6-bc49f13a1829"}
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 0x21b5b49ea2b0667f8d22d7ad6faa751bd0dedf901fe78dc5aab66e9050fc8005. Chain 2 (Bitcoin): anchored in block 954017 (2026-06-16T23:38:33Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/360f7a57-712b-47b5-b6b6-bc49f13a1829.json and https://artists.proofprofile.net/proofs/artist/360f7a57-712b-47b5-b6b6-bc49f13a1829.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-16T23:38:33Z
  text: {"copyright_id":"0x21b5b49ea2b0667f8d22d7ad6faa751bd0dedf901fe78dc5aab66e9050fc8005","name":"April Darling","registered_at":"2026-06-16T08:25:27Z","symbol":"NIM0994095","token_address":"0x5454c68851ec82bdb8d2291a83e4049a43598c38","type":"artist","uuid":"360f7a57-712b-47b5-b6b6-bc49f13a1829"}
album: Human Thief
  type: MusicAlbum
  date published: 2021-11-12
album: Chase
  type: MusicAlbum
  date published: 2022-08-19
album: Chamomile
  type: MusicAlbum
  date published: 2023-01-13
album: Visions of You
  type: MusicAlbum
  date published: 2023-07-27
  track: Visions of You
    type: MusicRecording
    duration: PT3M34S
    duration ms: 214429
    explicit: false
    by artist: April Darling
    in album: Visions of You
      type: MusicAlbum
      date published: 2023-07-27
    isrc code: AUMEV2358204
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-20T02:33:58+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x14fbd00de9063d67eeee32dfcd9e47f78c4c60dc9b6472f1cd1f49ad2cc9b757
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958823
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958823
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/AUMEV2358204
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-20T05:36:55Z
    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 0x14fbd00de9063d67eeee32dfcd9e47f78c4c60dc9b6472f1cd1f49ad2cc9b757. Chain 2 (Bitcoin): anchored in block 958823 (2026-07-20T05:36:55Z), 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/AUMEV2358204.
      date published: 2026-07-20T05:36:55Z
    audio: Visions of You
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 112.116
      additional property: Musical Key
        type: PropertyValue
        value: 1
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.583
      additional property: Energy
        type: PropertyValue
        value: 0.776
      additional property: Speechiness
        type: PropertyValue
        value: 0.074
      additional property: Acousticness
        type: PropertyValue
        value: 0.124
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.097
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.613
      additional property: Loudness (dB)
        type: PropertyValue
        value: -7.304
      additional property: Key Name
        type: PropertyValue
        value: C#
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: Bury My Body
  type: MusicAlbum
  date published: 2024-08-21