petalhead
type: MusicGroup
genre: bedroom pop
genre: japanese indie
popularity: 6
followers: 655
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x73ffa2a1f20b01e370b0458da534e829813b45c7c996868ac6188e213b887fc5
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954066
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954066
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/58d2d9bc-73b5-4adc-a1cb-da3e0cdbb09a.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/58d2d9bc-73b5-4adc-a1cb-da3e0cdbb09a.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/58d2d9bc-73b5-4adc-a1cb-da3e0cdbb09a
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T08:11:48Z
additional property: OTSCanonicalRecord
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 0x73ffa2a1f20b01e370b0458da534e829813b45c7c996868ac6188e213b887fc5. Chain 2 (Bitcoin): anchored in block 954066 (2026-06-17T08:11:48Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/58d2d9bc-73b5-4adc-a1cb-da3e0cdbb09a.json and https://artists.proofprofile.net/proofs/artist/58d2d9bc-73b5-4adc-a1cb-da3e0cdbb09a.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T08:11:48Z
album: Sweeter
  type: MusicAlbum
  date published: 2021-08-25
album: Sweeter
  type: MusicAlbum
  date published: 2021-08-25
album: Playground
  type: MusicAlbum
  date published: 2021-10-06
album: Playground
  type: MusicAlbum
  date published: 2021-10-06
album: Honey, Let It Be
  type: MusicAlbum
  date published: 2021-12-01
album: Daylight
  type: MusicAlbum
  date published: 2022-10-26
album: Wild
  type: MusicAlbum
  date published: 2022-12-07
album: Sway
  type: MusicAlbum
  date published: 2023-02-08
album: Shadows
  type: MusicAlbum
  date published: 2023-04-12
album: 早咲きのダリア
  type: MusicAlbum
  date published: 2023-09-13
  track: 早咲きのダリア
    type: MusicRecording
    duration: PT3M36S
    duration ms: 216000
    explicit: false
    by artist: petalhead
    in album: 早咲きのダリア
      type: MusicAlbum
      date published: 2023-09-13
    genre: bedroom pop
    genre: japanese indie
    isrc code: JPG102301261
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-05T21:32:52+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xaee885d7d7dc4d6d3dd81b52ef315673c99e190017a2f7c61e0a2fde7880bd5e
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 956857
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/956857
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPG102301261
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-06T01:26:17Z
    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 0xaee885d7d7dc4d6d3dd81b52ef315673c99e190017a2f7c61e0a2fde7880bd5e. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/JPG102301261.
      date published: 2026-07-06T01:26:17Z
    audio: 早咲きのダリア
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 90.003
      additional property: Musical Key
        type: PropertyValue
        value: 0
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.713
      additional property: Energy
        type: PropertyValue
        value: 0.577
      additional property: Speechiness
        type: PropertyValue
        value: 0.039
      additional property: Acousticness
        type: PropertyValue
        value: 0.814
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.295
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.535
      additional property: Loudness (dB)
        type: PropertyValue
        value: -6.659
      additional property: Key Name
        type: PropertyValue
        value: C
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: Apartment Above
  type: MusicAlbum
  date published: 2023-11-22
album: Lightness
  type: MusicAlbum
  date published: 2024-08-28
album: Ghost on Holiday
  type: MusicAlbum
  date published: 2024-09-18
album: Springs to Life
  type: MusicAlbum
  date published: 2024-10-09
album: Kakera
  type: MusicAlbum
  date published: 2024-10-30
album: 果実を好きなだけ
  type: MusicAlbum
  date published: 2025-06-04
album: ゲームキーパー
  type: MusicAlbum
  date published: 2025-06-25
album: オレンジの帰り道
  type: MusicAlbum
  date published: 2025-08-06
album: The Uncaging of a Paper Crane
  type: MusicAlbum
  date published: 2025-10-01
track: Paradise
  type: MusicRecording
  duration: PT3M6S
  duration ms: 186611
  explicit: false
  by artist: SYNC.EXE
  by artist: petalhead
  by artist: Ian Ewing
  in album: Equinox II
    type: MusicAlbum
    date published: 2023-08-14
  popularity: 4
  genre: lo-fi
  genre: lo-fi-beats
  genre: jazz-beats
  isrc code: QM3DF2211946
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
  additional property: CopyrightChainExplorerURL
  additional property: OTSHash
  additional property: OTSBitcoinBlock
  additional property: OTSBitcoinBlockVerifyURL
  additional property: OTSVerificationAPI
  additional property: OTSTimestamp
  additional property: OTSVerifyInstructions
  subject of: OpenTimestamps Proof of Existence
  audio: Paradise

CopyrightRegisteredAt
type: PropertyValue
value: 2026-07-07T04:21:38+00:00

CopyrightChainExplorerURL
type: PropertyValue
value: https://explorer.copyrightchains.com/tx/0x7afa691f1c3d2cda8bf1ce37be5c081fa5bd2a93a06dd54c9992e52f8d93a90f

OTSHash
type: PropertyValue

OTSBitcoinBlock
type: PropertyValue
value: 957145

OTSBitcoinBlockVerifyURL
type: PropertyValue
value: https://blockstream.info/api/block-height/957145

OTSVerificationAPI
type: PropertyValue
value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM3DF2211946

OTSTimestamp
type: PropertyValue
value: 2026-07-08T08:56:20Z

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

OpenTimestamps Proof of Existence
type: DigitalDocument
encoding format: application/vnd.opentimestamps.ots
description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7afa691f1c3d2cda8bf1ce37be5c081fa5bd2a93a06dd54c9992e52f8d93a90f. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/QM3DF2211946.
date published: 2026-07-08T08:56:20Z

Paradise
type: AudioObject
additional property: Tempo (BPM)
  type: PropertyValue
  value: 145.138
additional property: Musical Key
  type: PropertyValue
  value: 11
additional property: Mode (Major/Minor)
  type: PropertyValue
  value: 1
additional property: Time Signature
  type: PropertyValue
  value: 5
additional property: Danceability
  type: PropertyValue
  value: 0.743
additional property: Energy
  type: PropertyValue
  value: 0.414
additional property: Speechiness
  type: PropertyValue
  value: 0.043
additional property: Acousticness
  type: PropertyValue
  value: 0.073
additional property: Instrumentalness
  type: PropertyValue
  value: 0.004
additional property: Liveness
  type: PropertyValue
  value: 0.354
additional property: Valence (Positivity)
  type: PropertyValue
  value: 0.337
additional property: Loudness (dB)
  type: PropertyValue
  value: -11.609
additional property: Key Name
  type: PropertyValue
  value: B
additional property: Mode Name
  type: PropertyValue
  value: Major

Paradise
type: MusicRecording
duration: PT3M6S
duration ms: 186611
explicit: false
by artist: SYNC.EXE
by artist: petalhead
by artist: Ian Ewing
in album: Paradise
  type: MusicAlbum
  date published: 2023-06-07
genre: lo-fi
genre: lo-fi-beats
genre: jazz-beats
isrc code: QM3DF2211946
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T04:21:38+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x7afa691f1c3d2cda8bf1ce37be5c081fa5bd2a93a06dd54c9992e52f8d93a90f
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 957118
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957118
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM3DF2211946
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T03:20:19Z
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 0x7afa691f1c3d2cda8bf1ce37be5c081fa5bd2a93a06dd54c9992e52f8d93a90f. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/QM3DF2211946.
  date published: 2026-07-08T03:20:19Z
audio: Paradise
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 145.138
  additional property: Musical Key
    type: PropertyValue
    value: 11
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.743
  additional property: Energy
    type: PropertyValue
    value: 0.414
  additional property: Speechiness
    type: PropertyValue
    value: 0.043
  additional property: Acousticness
    type: PropertyValue
    value: 0.073
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.004
  additional property: Liveness
    type: PropertyValue
    value: 0.354
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.337
  additional property: Loudness (dB)
    type: PropertyValue
    value: -11.609
  additional property: Key Name
    type: PropertyValue
    value: B
  additional property: Mode Name
    type: PropertyValue
    value: Major