Vulkaanic
type: MusicGroup
genre: vocaloid
popularity: 26
followers: 360
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xab0a5fc572bddbbad06d8579c081fc460ab8eb6ac2f79ce3d4711907b5a0b997
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/b98cca3e-2cd2-40c5-be82-27d10872083e.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/b98cca3e-2cd2-40c5-be82-27d10872083e.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/b98cca3e-2cd2-40c5-be82-27d10872083e
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-12T19:24:56Z
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 0xab0a5fc572bddbbad06d8579c081fc460ab8eb6ac2f79ce3d4711907b5a0b997. 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/b98cca3e-2cd2-40c5-be82-27d10872083e.json and https://artists.proofprofile.net/proofs/artist/b98cca3e-2cd2-40c5-be82-27d10872083e.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-12T19:24:56Z
album: Goodbye
  type: MusicAlbum
  date published: 2025-01-20
album: Love Letter
  type: MusicAlbum
  date published: 2025-03-02
  track: Love Letter
    type: MusicRecording
    duration: PT2M47S
    duration ms: 167269
    explicit: false
    by artist: Vulkaanic
    in album: Love Letter
      type: MusicAlbum
      date published: 2025-03-02
    genre: vocaloid
    isrc code: NL5UZ2503426
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-16T08:12:26+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x51e5ca0c1d49c6fd5fccff2961b83ab801aa9e5777f79b105d5079e3346f319d
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958268
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958268
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NL5UZ2503426
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-16T11:07:33Z
    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
    subject of: OpenTimestamps Proof of Existence
      type: DigitalDocument
      encoding format: application/vnd.opentimestamps.ots
      description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51e5ca0c1d49c6fd5fccff2961b83ab801aa9e5777f79b105d5079e3346f319d. Chain 2 (Bitcoin): anchored in block 958268 (2026-07-16T11:07:33Z), 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/NL5UZ2503426.
      date published: 2026-07-16T11:07:33Z
    audio: Love Letter
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 104.928
      additional property: Musical Key
        type: PropertyValue
        value: 9
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.895
      additional property: Energy
        type: PropertyValue
        value: 0.377
      additional property: Speechiness
        type: PropertyValue
        value: 0.403
      additional property: Acousticness
        type: PropertyValue
        value: 0.213
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.142
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.527
      additional property: Loudness (dB)
        type: PropertyValue
        value: -13.286
      additional property: Key Name
        type: PropertyValue
        value: A
      additional property: Mode Name
        type: PropertyValue
        value: Minor
  track: また会いたい
    type: MusicRecording
    duration: PT2M50S
    duration ms: 170514
    explicit: false
    by artist: Vulkaanic
    in album: Love Letter
      type: MusicAlbum
      date published: 2025-03-02
    genre: vocaloid
    isrc code: NL5UZ2503427
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-20T12:07:50+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xc1ff93fa20a8031e9d4f98647b6a7f295a4c17f67aa6997590cb46d205e0a26b
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958880
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958880
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NL5UZ2503427
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-20T15:07:24Z
    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 0xc1ff93fa20a8031e9d4f98647b6a7f295a4c17f67aa6997590cb46d205e0a26b. Chain 2 (Bitcoin): anchored in block 958880 (2026-07-20T15:07:24Z), 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/NL5UZ2503427.
      date published: 2026-07-20T15:07:24Z
    audio: また会いたい
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 181.833
      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: 0.734
      additional property: Energy
        type: PropertyValue
        value: 0.386
      additional property: Speechiness
        type: PropertyValue
        value: 0.373
      additional property: Acousticness
        type: PropertyValue
        value: 0.571
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.285
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.825
      additional property: Loudness (dB)
      additional property: Key Name
      additional property: Mode Name
album: My Life
album: DREAMS
album: VIBING
album: Best of Us

Loudness (dB)
type: PropertyValue
value: -11.335

Key Name
type: PropertyValue
value: C#

Mode Name
type: PropertyValue
value: Minor

My Life
type: MusicAlbum
date published: 2025-03-11

DREAMS
type: MusicAlbum
date published: 2025-03-28
track: Stardust Kirari
  type: MusicRecording
  duration: PT2M2S
  duration ms: 122336
  explicit: false
  by artist: Vulkaanic
  in album: DREAMS
    type: MusicAlbum
    date published: 2025-03-28
  genre: vocaloid
  isrc code: NL5UZ2505114
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-06-28T20:42:12+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0xaf9975ab241cbfecf2c61c9412a2b7678bfcb20fc61b7586a1fbbfe445a22089
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 956375
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/956375
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NL5UZ2505114
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-02T16:51:38Z
  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
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf9975ab241cbfecf2c61c9412a2b7678bfcb20fc61b7586a1fbbfe445a22089. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/NL5UZ2505114.
    date published: 2026-07-02T16:51:38Z
  audio: Stardust Kirari
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 88.008
    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: 0.769
    additional property: Energy
      type: PropertyValue
      value: 0.526
    additional property: Speechiness
      type: PropertyValue
      value: 0.112
    additional property: Acousticness
      type: PropertyValue
      value: 0.028
    additional property: Instrumentalness
      type: PropertyValue
      value: 0
    additional property: Liveness
      type: PropertyValue
      value: 0.304
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.798
    additional property: Loudness (dB)
      type: PropertyValue
      value: -7.128
    additional property: Key Name
      type: PropertyValue
      value: F#
    additional property: Mode Name
      type: PropertyValue
      value: Minor
track: My No No No
  type: MusicRecording
  duration: PT1M37S
  duration ms: 97110
  explicit: false
  by artist: Vulkaanic
  in album: DREAMS
    type: MusicAlbum
    date published: 2025-03-28
  genre: vocaloid
  isrc code: NL5UZ2505116
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-15T10:25:59+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x665841a74993e9d2bd0576e58ec82aed9889b8926c278141d564dff2ab046838
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 958146
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/958146
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NL5UZ2505116
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-15T10:33:22Z
  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 0x665841a74993e9d2bd0576e58ec82aed9889b8926c278141d564dff2ab046838. Chain 2 (Bitcoin): anchored in block 958146 (2026-07-15T10:33:22Z), 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/NL5UZ2505116.
    date published: 2026-07-15T10:33:22Z
  audio: My No No No
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 194.025
    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: 0.729
    additional property: Energy
      type: PropertyValue
      value: 0.559
    additional property: Speechiness
      type: PropertyValue
      value: 0.103
    additional property: Acousticness
      type: PropertyValue
      value: 0.565
    additional property: Instrumentalness
      type: PropertyValue
      value: 0
    additional property: Liveness
      type: PropertyValue
      value: 0.107
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.94
    additional property: Loudness (dB)
      type: PropertyValue
      value: -9.76
    additional property: Key Name
      type: PropertyValue
      value: C#
    additional property: Mode Name
      type: PropertyValue
      value: Major
track: Sugar Rush
  type: MusicRecording
  duration: PT1M54S
  duration ms: 114379
  explicit: false
  by artist: Vulkaanic
  in album: DREAMS
    type: MusicAlbum
    date published: 2025-03-28
  genre: vocaloid
  isrc code: NL5UZ2505118
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-12T21:52:26+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x9f3914b2ad14a4008637c5c0cfcaffe8e08b5e1014642837003b1c0521839a2f
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 957766
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/957766
  additional property: OTSVerificationAPI
  additional property: OTSTimestamp
  additional property: OTSVerifyInstructions
  subject of: OpenTimestamps Proof of Existence
  audio: Sugar Rush
track: Sakura Sparks
track: Pink Skies
track: Pink Star Adventure

OTSVerificationAPI
type: PropertyValue
value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NL5UZ2505118

OTSTimestamp
type: PropertyValue
value: 2026-07-12T22:25:04Z

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 0x9f3914b2ad14a4008637c5c0cfcaffe8e08b5e1014642837003b1c0521839a2f. Chain 2 (Bitcoin): anchored in block 957766 (2026-07-12T22:25:04Z), 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/NL5UZ2505118.
date published: 2026-07-12T22:25:04Z

Sugar Rush
type: AudioObject
additional property: Tempo (BPM)
  type: PropertyValue
  value: 175.133
additional property: Musical Key
  type: PropertyValue
  value: 11
additional property: Mode (Major/Minor)
  type: PropertyValue
  value: 1
additional property: Time Signature
  type: PropertyValue
  value: 4
additional property: Danceability
  type: PropertyValue
  value: 0.666
additional property: Energy
  type: PropertyValue
  value: 0.878
additional property: Speechiness
  type: PropertyValue
  value: 0.11
additional property: Acousticness
  type: PropertyValue
  value: 0.102
additional property: Instrumentalness
  type: PropertyValue
  value: 0
additional property: Liveness
  type: PropertyValue
  value: 0.23
additional property: Valence (Positivity)
  type: PropertyValue
  value: 0.82
additional property: Loudness (dB)
  type: PropertyValue
  value: -6.925
additional property: Key Name
  type: PropertyValue
  value: B
additional property: Mode Name
  type: PropertyValue
  value: Major

Sakura Sparks
type: MusicRecording
duration: PT1M58S
duration ms: 118043
explicit: false
by artist: Vulkaanic
in album: DREAMS
  type: MusicAlbum
  date published: 2025-03-28
genre: vocaloid
isrc code: NL5UZ2505119
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-03T05:42:51+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xcc1449bbc546ceda9636e11c0cfcc8f20f61c302bc46683853b9b8974994eff4
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 956484
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/956484
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NL5UZ2505119
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-03T10:47:44Z
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 0xcc1449bbc546ceda9636e11c0cfcc8f20f61c302bc46683853b9b8974994eff4. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/NL5UZ2505119.
  date published: 2026-07-03T10:47:44Z
audio: Sakura Sparks
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 90.993
  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: 0.671
  additional property: Energy
    type: PropertyValue
    value: 0.689
  additional property: Speechiness
    type: PropertyValue
    value: 0.046
  additional property: Acousticness
    type: PropertyValue
    value: 0.046
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.107
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.326
  additional property: Loudness (dB)
    type: PropertyValue
    value: -7.716
  additional property: Key Name
    type: PropertyValue
    value: F#
  additional property: Mode Name
    type: PropertyValue
    value: Minor

Pink Skies
type: MusicRecording
duration: PT2M4S
duration ms: 124201
explicit: false
by artist: Vulkaanic
in album: DREAMS
  type: MusicAlbum
  date published: 2025-03-28
genre: vocaloid
isrc code: NL5UZ2505120
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-02T21:31:31+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x375f2a167a501a39ff922c3647a9ae7d849951256f0843a50e63959d8f056eb2
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/NL5UZ2505120
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-17T04:53:03Z
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 0x375f2a167a501a39ff922c3647a9ae7d849951256f0843a50e63959d8f056eb2. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-17T04:53:03Z), 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/NL5UZ2505120.
  date published: 2026-07-17T04:53:03Z
audio: Pink Skies
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 146.002
  additional property: Musical Key
    type: PropertyValue
    value: 0
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 1
  additional property: Danceability
    type: PropertyValue
    value: 0.781
  additional property: Energy
    type: PropertyValue
    value: 0.681
  additional property: Speechiness
    type: PropertyValue
    value: 0.049
  additional property: Acousticness
    type: PropertyValue
    value: 0.495
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.365
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.819
  additional property: Loudness (dB)
    type: PropertyValue
    value: -7.854
  additional property: Key Name
    type: PropertyValue
    value: C
  additional property: Mode Name
    type: PropertyValue
    value: Major

Pink Star Adventure
type: MusicRecording
duration: PT1M48S
duration ms: 108437
explicit: false
by artist: Vulkaanic
in album: DREAMS
  type: MusicAlbum
  date published: 2025-03-28
genre: vocaloid
isrc code: NL5UZ2505121
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-15T10:17:06+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xba439420adf39c1afab3279085f202c9814dd8d1e0b4e7c279f3f9fd3adf864a
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 958146
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/958146
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NL5UZ2505121
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-15T10:33:22Z
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 0xba439420adf39c1afab3279085f202c9814dd8d1e0b4e7c279f3f9fd3adf864a. Chain 2 (Bitcoin): anchored in block 958146 (2026-07-15T10:33:22Z), 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/NL5UZ2505121.
  date published: 2026-07-15T10:33:22Z
audio: Pink Star Adventure
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 175.054
  additional property: Musical Key
    type: PropertyValue
    value: 2
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 4
  additional property: Danceability
    type: PropertyValue
    value: 0.67
  additional property: Energy
    type: PropertyValue
    value: 0.701
  additional property: Speechiness
    type: PropertyValue
    value: 0.077
  additional property: Acousticness
    type: PropertyValue
    value: 0.101
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.198
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.86
  additional property: Loudness (dB)
    type: PropertyValue
    value: -8.323
  additional property: Key Name
    type: PropertyValue
    value: D
  additional property: Mode Name
    type: PropertyValue
    value: Major

DREAMS
type: MusicAlbum
date published: 2025-03-28
track: First Kiss
  type: MusicRecording
  duration: PT2M31S
  duration ms: 151408
  explicit: false
  by artist: Vulkaanic
  in album: DREAMS
    type: MusicAlbum
    date published: 2025-03-28
  genre: vocaloid
  isrc code: NL5UZ2505111
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-20T16:10:52+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x60e617b0e54572c21c17100c06a63dd61319865cfbeb08033f0f71721640f1c7
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 958907
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/958907
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NL5UZ2505111
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-20T19:09:03Z
  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 0x60e617b0e54572c21c17100c06a63dd61319865cfbeb08033f0f71721640f1c7. Chain 2 (Bitcoin): anchored in block 958907 (2026-07-20T19:09:03Z), 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/NL5UZ2505111.
    date published: 2026-07-20T19:09:03Z
  audio: First Kiss
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 106.097
    additional property: Musical Key
      type: PropertyValue
      value: 0
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 0
    additional property: Time Signature
      type: PropertyValue
      value: 4
    additional property: Danceability
      type: PropertyValue
      value: 0.84
    additional property: Energy
      type: PropertyValue
      value: 0.686
    additional property: Speechiness
      type: PropertyValue
      value: 0.055
    additional property: Acousticness
      type: PropertyValue
      value: 0.404
    additional property: Instrumentalness
      type: PropertyValue
      value: 0
    additional property: Liveness
      type: PropertyValue
      value: 0.325
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.6
    additional property: Loudness (dB)
      type: PropertyValue
      value: -9.021
    additional property: Key Name
      type: PropertyValue
      value: C
    additional property: Mode Name
      type: PropertyValue
      value: Minor

VIBING
type: MusicAlbum
date published: 2025-04-04
track: Crossing Wind
  type: MusicRecording
  duration: PT3M24S
  duration ms: 204100
  explicit: false
  by artist: Vulkaanic
  in album: VIBING
    type: MusicAlbum
    date published: 2025-04-04
  genre: vocaloid
  isrc code: NL5UZ2505227
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-12T22:53:11+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x7f8e25868202e3f20a1eaddd2378bdea1cff276feb90ed778295a4fc7b85f96e
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 957770
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/957770
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NL5UZ2505227
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-12T23:17:00Z
  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 0x7f8e25868202e3f20a1eaddd2378bdea1cff276feb90ed778295a4fc7b85f96e. Chain 2 (Bitcoin): anchored in block 957770 (2026-07-12T23:17:00Z), 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/NL5UZ2505227.
    date published: 2026-07-12T23:17:00Z
  audio: Crossing Wind
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 177.905
    additional property: Musical Key
      type: PropertyValue
      value: 11
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 1
    additional property: Time Signature
      type: PropertyValue
      value: 3
    additional property: Danceability
      type: PropertyValue
      value: 0.54
    additional property: Energy
      type: PropertyValue
      value: 0.808
    additional property: Speechiness
      type: PropertyValue
      value: 0.05
    additional property: Acousticness
      type: PropertyValue
      value: 0.008
    additional property: Instrumentalness
      type: PropertyValue
      value: 0
    additional property: Liveness
      type: PropertyValue
      value: 0.381
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.383
    additional property: Loudness (dB)
      type: PropertyValue
      value: -10.713
    additional property: Key Name
      type: PropertyValue
      value: B
    additional property: Mode Name
      type: PropertyValue
      value: Major
track: Guruguru Mazekaze
  type: MusicRecording
  duration: PT3M59S
  duration ms: 239019
  explicit: false
  by artist: Vulkaanic
  in album: VIBING
    type: MusicAlbum
    date published: 2025-04-04
  genre: vocaloid
  isrc code: NL5UZ2505228
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-06T00:04:15+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x0a80e1528f88cd69843b1ef80e2fdbd516010b82d1916fa77fb491b0cea208b9
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 956856
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/956856
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NL5UZ2505228
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-06T01:25:57Z
  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 0x0a80e1528f88cd69843b1ef80e2fdbd516010b82d1916fa77fb491b0cea208b9. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/NL5UZ2505228.
    date published: 2026-07-06T01:25:57Z
  audio: Guruguru Mazekaze
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 142.033
    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: 0.593
    additional property: Energy
      type: PropertyValue
      value: 0.664
    additional property: Speechiness
      type: PropertyValue
      value: 0.034
    additional property: Acousticness
      type: PropertyValue
      value: 0.008
    additional property: Instrumentalness
      type: PropertyValue
      value: 0
    additional property: Liveness
      type: PropertyValue
      value: 0.159
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.241
    additional property: Loudness (dB)
      type: PropertyValue
      value: -9.593
    additional property: Key Name
      type: PropertyValue
      value: B
    additional property: Mode Name
      type: PropertyValue
      value: Minor
track: Kirari Haru
  type: MusicRecording
  duration: PT2M29S
  duration ms: 149706
  explicit: false
  by artist: Vulkaanic
  in album: VIBING
    type: MusicAlbum
    date published: 2025-04-04
  genre: vocaloid
  isrc code: NL5UZ2505229
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-12T22:41:53+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x282ea0715ac0daf1a5a81bab64b2e4a92043b3f77ecf6499d15c338897fe4fdd
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 957771
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/957771
  additional property: OTSVerificationAPI
  additional property: OTSTimestamp
  additional property: OTSVerifyInstructions
  subject of: OpenTimestamps Proof of Existence
  audio: Kirari Haru
track: Watashi to Iu Hikari
track: Yumenouchi

OTSVerificationAPI
type: PropertyValue
value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NL5UZ2505229

OTSTimestamp
type: PropertyValue
value: 2026-07-12T23:27:28Z

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 0x282ea0715ac0daf1a5a81bab64b2e4a92043b3f77ecf6499d15c338897fe4fdd. Chain 2 (Bitcoin): anchored in block 957771 (2026-07-12T23:27:28Z), 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/NL5UZ2505229.
date published: 2026-07-12T23:27:28Z

Kirari Haru
type: AudioObject
additional property: Tempo (BPM)
  type: PropertyValue
  value: 172.007
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: 0.574
additional property: Energy
  type: PropertyValue
  value: 0.762
additional property: Speechiness
  type: PropertyValue
  value: 0.128
additional property: Acousticness
  type: PropertyValue
  value: 0.025
additional property: Instrumentalness
  type: PropertyValue
  value: 0
additional property: Liveness
  type: PropertyValue
  value: 0.084
additional property: Valence (Positivity)
  type: PropertyValue
  value: 0.53
additional property: Loudness (dB)
  type: PropertyValue
  value: -6.955
additional property: Key Name
  type: PropertyValue
  value: C#
additional property: Mode Name
  type: PropertyValue
  value: Major

Watashi to Iu Hikari
type: MusicRecording
duration: PT2M5S
duration ms: 125572
explicit: false
by artist: Vulkaanic
in album: VIBING
  type: MusicAlbum
  date published: 2025-04-04
genre: vocaloid
isrc code: NL5UZ2505231
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-03T16:24:33+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x4d46cb97d115b5d906dfbb57a3d60c8130d18fcc4bbed8c1728f47880ff578f3
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 956560
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/956560
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NL5UZ2505231
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-03T23:28:02Z
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 0x4d46cb97d115b5d906dfbb57a3d60c8130d18fcc4bbed8c1728f47880ff578f3. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/NL5UZ2505231.
  date published: 2026-07-03T23:28:02Z
audio: Watashi to Iu Hikari
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 166.096
  additional property: Musical Key
    type: PropertyValue
    value: 5
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 4
  additional property: Danceability
    type: PropertyValue
    value: 0.579
  additional property: Energy
    type: PropertyValue
    value: 0.58
  additional property: Speechiness
    type: PropertyValue
    value: 0.035
  additional property: Acousticness
    type: PropertyValue
    value: 0.005
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.198
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.64
  additional property: Loudness (dB)
    type: PropertyValue
    value: -8.485
  additional property: Key Name
    type: PropertyValue
    value: F
  additional property: Mode Name
    type: PropertyValue
    value: Major

Yumenouchi
type: MusicRecording
duration: PT2M32S
duration ms: 152759
explicit: false
by artist: Vulkaanic
in album: VIBING
  type: MusicAlbum
  date published: 2025-04-04
genre: vocaloid
isrc code: NL5UZ2505232
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-16T19:03:29+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x9241cd58bb7ebf61513fcfa80d8dd3b2400aab1bb814d8b4bb166333e732cf16
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 958319
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/958319
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NL5UZ2505232
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-16T22:17:40Z
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 0x9241cd58bb7ebf61513fcfa80d8dd3b2400aab1bb814d8b4bb166333e732cf16. Chain 2 (Bitcoin): anchored in block 958319 (2026-07-16T22:17:40Z), 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/NL5UZ2505232.
  date published: 2026-07-16T22:17:40Z
audio: Yumenouchi
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 99.981
  additional property: Musical Key
    type: PropertyValue
    value: 5
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 0
  additional property: Time Signature
    type: PropertyValue
    value: 4
  additional property: Danceability
    type: PropertyValue
    value: 0.658
  additional property: Energy
    type: PropertyValue
    value: 0.448
  additional property: Speechiness
    type: PropertyValue
    value: 0.029
  additional property: Acousticness
    type: PropertyValue
    value: 0.179
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.318
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.136
  additional property: Loudness (dB)
    type: PropertyValue
    value: -9.762
  additional property: Key Name
    type: PropertyValue
    value: F
  additional property: Mode Name
    type: PropertyValue
    value: Minor

Best of Us
type: MusicAlbum
date published: 2025-05-09
track: Echoes In The Dark
  type: MusicRecording
  duration: PT3M45S
  duration ms: 225778
  explicit: false
  by artist: Vulkaanic
  in album: Best of Us
    type: MusicAlbum
    date published: 2025-05-09
  genre: vocaloid
  isrc code: NL5UZ2508580
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-03T09:44:34+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0xc7de93c69110f726f66858cbd1f0bd0576d3c9f2c232ad33c67f52c96afd9b3b
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 956772
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/956772
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NL5UZ2508580
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-05T10:01:46Z
  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 0xc7de93c69110f726f66858cbd1f0bd0576d3c9f2c232ad33c67f52c96afd9b3b. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/NL5UZ2508580.
    date published: 2026-07-05T10:01:46Z
  audio: Echoes In The Dark
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 169.916
    additional property: Musical Key
      type: PropertyValue
      value: 8
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 1
    additional property: Time Signature
      type: PropertyValue
      value: 4
    additional property: Danceability
      type: PropertyValue
      value: 0.511
    additional property: Energy
      type: PropertyValue
      value: 0.604
    additional property: Speechiness
      type: PropertyValue
      value: 0.063
    additional property: Acousticness
      type: PropertyValue
      value: 0.186
    additional property: Instrumentalness
      type: PropertyValue
      value: 0
    additional property: Liveness
      type: PropertyValue
      value: 0.128
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.448
    additional property: Loudness (dB)
      type: PropertyValue
      value: -6.569
    additional property: Key Name
      type: PropertyValue
      value: Ab
    additional property: Mode Name
      type: PropertyValue
      value: Major
track: Where Are You Now
  type: MusicRecording
  duration: PT3M18S
  duration ms: 198836
  explicit: false
  by artist: Vulkaanic
  in album: Best of Us
    type: MusicAlbum
    date published: 2025-05-09
  genre: vocaloid
  isrc code: NL5UZ2508581
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-05T01:36:42+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x9b9f63fe11168cea015ebe6d4734c3de178b523ece05bf747fde7416fe406768
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 956862
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/956862
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NL5UZ2508581
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-06T02:10:22Z
  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 0x9b9f63fe11168cea015ebe6d4734c3de178b523ece05bf747fde7416fe406768. Chain 2 (Bitcoin): anchored in block 956862 (2026-07-06T02:10:22Z), 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/NL5UZ2508581.
    date published: 2026-07-06T02:10:22Z
  audio: Where Are You Now
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 154.904
    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
      type: PropertyValue
      value: 0.56
    additional property: Energy
      type: PropertyValue
      value: 0.634
    additional property: Speechiness
      type: PropertyValue
      value: 0.057
    additional property: Acousticness
      type: PropertyValue
      value: 0.042
    additional property: Instrumentalness
      type: PropertyValue
      value: 0
    additional property: Liveness
      type: PropertyValue
      value: 0.34
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.225
    additional property: Loudness (dB)
      type: PropertyValue
      value: -8.365
    additional property: Key Name
      type: PropertyValue
      value: F#
    additional property: Mode Name
      type: PropertyValue
      value: Major
track: Totally In Love
  type: MusicRecording
  duration: PT2M33S
  duration ms: 153264
  explicit: false
  by artist: Vulkaanic
  in album: Best of Us
    type: MusicAlbum
    date published: 2025-05-09
  genre: vocaloid
  isrc code: NL5UZ2508582
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-06T03:14:45+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x6dacabad64d214a4f714b016cc7363b9ed78cc14a939c0b20e0f5cf55ab74d31
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 956889
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/956889
  additional property: OTSVerificationAPI
  additional property: OTSTimestamp
  additional property: OTSVerifyInstructions
  subject of: OpenTimestamps Proof of Existence
  audio: Totally In Love

OTSVerificationAPI
type: PropertyValue
value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NL5UZ2508582

OTSTimestamp
type: PropertyValue
value: 2026-07-06T06:56:49Z

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 0x6dacabad64d214a4f714b016cc7363b9ed78cc14a939c0b20e0f5cf55ab74d31. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/NL5UZ2508582.
date published: 2026-07-06T06:56:49Z

Totally In Love
type: AudioObject
additional property: Tempo (BPM)
  type: PropertyValue
  value: 95.917
additional property: Musical Key
  type: PropertyValue
  value: 0
additional property: Mode (Major/Minor)
  type: PropertyValue
  value: 0
additional property: Time Signature
  type: PropertyValue
  value: 4
additional property: Danceability
  type: PropertyValue
  value: 0.743
additional property: Energy
  type: PropertyValue
  value: 0.688
additional property: Speechiness
  type: PropertyValue
  value: 0.137
additional property: Acousticness
  type: PropertyValue
  value: 0.099
additional property: Instrumentalness
  type: PropertyValue
  value: 0
additional property: Liveness
  type: PropertyValue
  value: 0.095
additional property: Valence (Positivity)
  type: PropertyValue
  value: 0.684
additional property: Loudness (dB)
  type: PropertyValue
  value: -7.005
additional property: Key Name
  type: PropertyValue
  value: C
additional property: Mode Name
  type: PropertyValue
  value: Minor

Best of Us
type: MusicAlbum
date published: 2025-05-09
track: Echoes In The Dark
  type: MusicRecording
  duration: PT3M45S
  duration ms: 225778
  explicit: false
  by artist: Vulkaanic
  in album: Best of Us
    type: MusicAlbum
    date published: 2025-05-09
  genre: vocaloid
  isrc code: NL5UZ2508580
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-03T09:44:34+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0xc7de93c69110f726f66858cbd1f0bd0576d3c9f2c232ad33c67f52c96afd9b3b
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 956545
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/956545
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NL5UZ2508580
  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
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7de93c69110f726f66858cbd1f0bd0576d3c9f2c232ad33c67f52c96afd9b3b. 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/NL5UZ2508580.
    date published: 2026-07-03T19:59:51Z
  audio: Echoes In The Dark
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 169.916
    additional property: Musical Key
      type: PropertyValue
      value: 8
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 1
    additional property: Time Signature
      type: PropertyValue
      value: 4
    additional property: Danceability
      type: PropertyValue
      value: 0.511
    additional property: Energy
      type: PropertyValue
      value: 0.604
    additional property: Speechiness
      type: PropertyValue
      value: 0.063
    additional property: Acousticness
      type: PropertyValue
      value: 0.186
    additional property: Instrumentalness
      type: PropertyValue
      value: 0
    additional property: Liveness
      type: PropertyValue
      value: 0.128
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.448
    additional property: Loudness (dB)
      type: PropertyValue
      value: -6.569
    additional property: Key Name
      type: PropertyValue
      value: Ab
    additional property: Mode Name
      type: PropertyValue
      value: Major
track: Where Are You Now
  type: MusicRecording
  duration: PT3M18S
  duration ms: 198836
  explicit: false
  by artist: Vulkaanic
  in album: Best of Us
    type: MusicAlbum
    date published: 2025-05-09
  genre: vocaloid
  isrc code: NL5UZ2508581
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-05T01:36:42+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x9b9f63fe11168cea015ebe6d4734c3de178b523ece05bf747fde7416fe406768
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 956772
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/956772
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NL5UZ2508581
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-19T23:54:54Z
  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 0x9b9f63fe11168cea015ebe6d4734c3de178b523ece05bf747fde7416fe406768. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-19T23:54:54Z), 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/NL5UZ2508581.
    date published: 2026-07-19T23:54:54Z
  audio: Where Are You Now
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 154.904
    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
      type: PropertyValue
      value: 0.56
    additional property: Energy
      type: PropertyValue
      value: 0.634
    additional property: Speechiness
      type: PropertyValue
      value: 0.057
    additional property: Acousticness
      type: PropertyValue
      value: 0.042
    additional property: Instrumentalness
      type: PropertyValue
      value: 0
    additional property: Liveness
      type: PropertyValue
      value: 0.34
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.225
    additional property: Loudness (dB)
      type: PropertyValue
      value: -8.365
    additional property: Key Name
      type: PropertyValue
      value: F#
    additional property: Mode Name
      type: PropertyValue
      value: Major