Astro Heart
type: MusicGroup
genre: jangle pop
popularity: 8
followers: 422
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x22a638e4c9172dcf1235bbc14a2dd2545f48e4682310bcd9865799bf8d33080c
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953896
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953896
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/0f5c9544-9598-46c5-8a3f-d46e7c88a404.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/0f5c9544-9598-46c5-8a3f-d46e7c88a404.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/0f5c9544-9598-46c5-8a3f-d46e7c88a404
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T06:05:56Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x22a638e4c9172dcf1235bbc14a2dd2545f48e4682310bcd9865799bf8d33080c","name":"Astro Heart","registered_at":"2026-06-15T19:09:04Z","symbol":"NIM0803978","token_address":"0xf9c9a191ecf08b98ef5c83fd2d55c913be0fe684","type":"artist","uuid":"0f5c9544-9598-46c5-8a3f-d46e7c88a404"}
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 0x22a638e4c9172dcf1235bbc14a2dd2545f48e4682310bcd9865799bf8d33080c. Chain 2 (Bitcoin): anchored in block 953896 (2026-06-16T06:05:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/0f5c9544-9598-46c5-8a3f-d46e7c88a404.json and https://artists.proofprofile.net/proofs/artist/0f5c9544-9598-46c5-8a3f-d46e7c88a404.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-16T06:05:56Z
  text: {"copyright_id":"0x22a638e4c9172dcf1235bbc14a2dd2545f48e4682310bcd9865799bf8d33080c","name":"Astro Heart","registered_at":"2026-06-15T19:09:04Z","symbol":"NIM0803978","token_address":"0xf9c9a191ecf08b98ef5c83fd2d55c913be0fe684","type":"artist","uuid":"0f5c9544-9598-46c5-8a3f-d46e7c88a404"}
album: Strawberry Moon
  type: MusicAlbum
  date published: 2019-09-30
album: Fall Fall Fall
  type: MusicAlbum
  date published: 2019-10-18
album: Lemonade
  type: MusicAlbum
  date published: 2019-11-15
album: The Orchard
  type: MusicAlbum
  date published: 2020-01-21
album: Stand on By
  type: MusicAlbum
  date published: 2020-02-21
album: Sivan's Song
  type: MusicAlbum
  date published: 2020-03-11
album: Astro Heart
  type: MusicAlbum
  date published: 2020-04-03
album: Pen Pals
  type: MusicAlbum
  date published: 2020-05-29
  track: Dear
    type: MusicRecording
    duration: PT3M6S
    duration ms: 186356
    explicit: false
    by artist: Astro Heart
    in album: Pen Pals
      type: MusicAlbum
      date published: 2020-05-29
    genre: jangle pop
    isrc code: QZHN42038515
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-05T13:10:56+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x8a76211981892631222eeb27f7aab6bc5ebf809a7aaeb8d60d4b5ebf17b73f30
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 956826
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/956826
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZHN42038515
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-05T19:27:56Z
    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 0x8a76211981892631222eeb27f7aab6bc5ebf809a7aaeb8d60d4b5ebf17b73f30. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/QZHN42038515.
      date published: 2026-07-05T19:27:56Z
    audio: Dear
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 139.416
      additional property: Musical Key
        type: PropertyValue
        value: 4
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.467
      additional property: Energy
        type: PropertyValue
        value: 0.452
      additional property: Speechiness
        type: PropertyValue
        value: 0.028
      additional property: Acousticness
        type: PropertyValue
        value: 0.693
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.042
      additional property: Liveness
        type: PropertyValue
        value: 0.109
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.515
      additional property: Loudness (dB)
        type: PropertyValue
        value: -10.961
      additional property: Key Name
        type: PropertyValue
        value: E
      additional property: Mode Name
        type: PropertyValue
        value: Major
  track: I, You
    type: MusicRecording
    duration: PT2M19S
    duration ms: 139230
    explicit: false
    by artist: Astro Heart
    in album: Pen Pals
      type: MusicAlbum
      date published: 2020-05-29
    genre: jangle pop
    isrc code: QZHN42038517
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-17T17:33:38+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x9b10a35d9f7b4899ed3a24d34b3ed250e88c9960bdbe4de35eeb09b98221c373
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958447
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958447
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZHN42038517
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-17T19:47:19Z
    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 0x9b10a35d9f7b4899ed3a24d34b3ed250e88c9960bdbe4de35eeb09b98221c373. Chain 2 (Bitcoin): anchored in block 958447 (2026-07-17T19:47:19Z), 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/QZHN42038517.
      date published: 2026-07-17T19:47:19Z
    audio: I, You
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 113.92
      additional property: Musical Key
        type: PropertyValue
        value: 6
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
      additional property: Energy
      additional property: Speechiness
      additional property: Acousticness
      additional property: Instrumentalness
      additional property: Liveness
      additional property: Valence (Positivity)
      additional property: Loudness (dB)
      additional property: Key Name
      additional property: Mode Name

Danceability
type: PropertyValue
value: 0.598

Energy
type: PropertyValue
value: 0.658

Speechiness
type: PropertyValue
value: 0.028

Acousticness
type: PropertyValue
value: 0.108

Instrumentalness
type: PropertyValue
value: 0.58

Liveness
type: PropertyValue
value: 0.135

Valence (Positivity)
type: PropertyValue
value: 0.523

Loudness (dB)
type: PropertyValue
value: -9.536

Key Name
type: PropertyValue
value: F#

Mode Name
type: PropertyValue
value: Major