あ子,ぐちり,タケノコ少年
type: MusicGroup
genre: vocaloid
album: 檻の中から愛を込めて
  type: MusicAlbum
  date published: 2021-09-08
  track: ミレディー (feat. 鏡音リン)
    type: MusicRecording
    duration: PT3M49S
    duration ms: 229000
    explicit: false
    by artist: あ子,ぐちり,タケノコ少年
    in album: 檻の中から愛を込めて
      type: MusicAlbum
      date published: 2021-09-08
    genre: vocaloid
    isrc code: JPE562107659
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-07T03:19:39+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x92c3f565c8b0b9fa71c8b5575f0ab2b67cfb6db9ee8ba3913d178a95c0b26308
    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/JPE562107659
    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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
    subject of: OpenTimestamps Proof of Existence
      type: DigitalDocument
      encoding format: application/vnd.opentimestamps.ots
      description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92c3f565c8b0b9fa71c8b5575f0ab2b67cfb6db9ee8ba3913d178a95c0b26308. 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/JPE562107659.
      date published: 2026-07-08T03:20:19Z
    audio: ミレディー (feat. 鏡音リン)
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 167.613
      additional property: Musical Key
        type: PropertyValue
        value: 6
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
        type: PropertyValue
        value: 5
      additional property: Danceability
        type: PropertyValue
        value: 0.495
      additional property: Energy
        type: PropertyValue
        value: 0.691
      additional property: Speechiness
        type: PropertyValue
        value: 0.053
      additional property: Acousticness
        type: PropertyValue
        value: 0.032
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.052
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.779
      additional property: Loudness (dB)
        type: PropertyValue
        value: -15.48
      additional property: Key Name
        type: PropertyValue
        value: F#
      additional property: Mode Name
        type: PropertyValue
        value: Minor
  track: シルバーリング (feat. 鏡音レン)
    type: MusicRecording
    duration: PT3M49S
    duration ms: 229300
    explicit: false
    by artist: あ子,ぐちり,タケノコ少年
    in album: 檻の中から愛を込めて
      type: MusicAlbum
      date published: 2021-09-08
    genre: vocaloid
    isrc code: JPE562107660
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-30T07:09:13+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xaf367b13308ff91f928b61171385533b80e3358f35042011ff05e19fb33cf468
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 960220
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/960220
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPE562107660
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-30T07:28:30Z
    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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
    subject of: OpenTimestamps Proof of Existence
      type: DigitalDocument
      encoding format: application/vnd.opentimestamps.ots
      description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf367b13308ff91f928b61171385533b80e3358f35042011ff05e19fb33cf468. Chain 2 (Bitcoin): anchored in block 960220 (2026-07-30T07:28:30Z), 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/JPE562107660.
      date published: 2026-07-30T07:28:30Z
    audio: シルバーリング (feat. 鏡音レン)
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 119.696
      additional property: Musical Key
        type: PropertyValue
        value: 0
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
        type: PropertyValue
        value: 5
      additional property: Danceability
        type: PropertyValue
        value: 0.513
      additional property: Energy
        type: PropertyValue
        value: 0.692
      additional property: Speechiness
        type: PropertyValue
        value: 0.045
      additional property: Acousticness
        type: PropertyValue
        value: 0.007
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.08
      additional property: Liveness
        type: PropertyValue
        value: 0.322
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.57
      additional property: Loudness (dB)
        type: PropertyValue
        value: -14.507
      additional property: Key Name
        type: PropertyValue
        value: C
      additional property: Mode Name
        type: PropertyValue
        value: Minor
  track: falso (feat. 初音ミク)
    type: MusicRecording
    duration: PT3M2S
    duration ms: 182000
    explicit: false
    by artist: あ子,ぐちり,タケノコ少年
    in album: 檻の中から愛を込めて
      type: MusicAlbum
      date published: 2021-09-08
    genre: vocaloid
    isrc code: JPE562107661
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-07T13:15:27+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x02a662b6c984b0b9bf88cca1eee4f431f79761d99fcf9de7b3f64531c9fb1338
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 957118
    additional property: OTSBitcoinBlockVerifyURL
    additional property: OTSVerificationAPI
    additional property: OTSTimestamp
    additional property: OTSVerifyInstructions
    subject of: OpenTimestamps Proof of Existence
    audio: falso (feat. 初音ミク)
  track: オルソドクシア (feat. 鏡音レン)
  track: Mr.D (feat. 鏡音レン)
  track: ムジカルマジカルシンドローム (feat. 初音ミク)
  track: フォーリンデッドリライブライフ (feat. 音街ウナ)
  track: ディアブロ (feat. 鏡音レン)
  track: 檻の中から愛を込めて (feat. 初音ミク)

OTSBitcoinBlockVerifyURL
type: PropertyValue
value: https://blockstream.info/api/block-height/957118

OTSVerificationAPI
type: PropertyValue
value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPE562107661

OTSTimestamp
type: PropertyValue
value: 2026-07-08T03:20:19Z

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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch

OpenTimestamps Proof of Existence
type: DigitalDocument
encoding format: application/vnd.opentimestamps.ots
description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02a662b6c984b0b9bf88cca1eee4f431f79761d99fcf9de7b3f64531c9fb1338. 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/JPE562107661.
date published: 2026-07-08T03:20:19Z

falso (feat. 初音ミク)
type: AudioObject
additional property: Tempo (BPM)
  type: PropertyValue
  value: 111.154
additional property: Musical Key
  type: PropertyValue
  value: 1
additional property: Mode (Major/Minor)
  type: PropertyValue
  value: 1
additional property: Time Signature
  type: PropertyValue
  value: 5
additional property: Danceability
  type: PropertyValue
  value: 0.713
additional property: Energy
  type: PropertyValue
  value: 0.281
additional property: Speechiness
  type: PropertyValue
  value: 0.054
additional property: Acousticness
  type: PropertyValue
  value: 0.202
additional property: Instrumentalness
  type: PropertyValue
  value: 0
additional property: Liveness
  type: PropertyValue
  value: 0.107
additional property: Valence (Positivity)
  type: PropertyValue
  value: 0.648
additional property: Loudness (dB)
  type: PropertyValue
  value: -17.398
additional property: Key Name
  type: PropertyValue
  value: C#
additional property: Mode Name
  type: PropertyValue
  value: Major

オルソドクシア (feat. 鏡音レン)
type: MusicRecording
duration: PT4M21S
duration ms: 261000
explicit: false
by artist: あ子,ぐちり,タケノコ少年
in album: 檻の中から愛を込めて
  type: MusicAlbum
  date published: 2021-09-08
genre: vocaloid
isrc code: JPE562107662
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-24T17:40:10+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xfa99d2ea01817b94117633d1475b39a65cbdcd5796a548af13105b7d33ccd0e6
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 956304
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/956304
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPE562107662
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-02T03:55:08Z
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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa99d2ea01817b94117633d1475b39a65cbdcd5796a548af13105b7d33ccd0e6. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/JPE562107662.
  date published: 2026-07-02T03:55:08Z
audio: オルソドクシア (feat. 鏡音レン)
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 128.193
  additional property: Musical Key
    type: PropertyValue
    value: 7
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.609
  additional property: Energy
    type: PropertyValue
    value: 0.599
  additional property: Speechiness
    type: PropertyValue
    value: 0.084
  additional property: Acousticness
    type: PropertyValue
    value: 0.052
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.004
  additional property: Liveness
    type: PropertyValue
    value: 0.413
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.809
  additional property: Loudness (dB)
    type: PropertyValue
    value: -17.296
  additional property: Key Name
    type: PropertyValue
    value: G
  additional property: Mode Name
    type: PropertyValue
    value: Major

Mr.D (feat. 鏡音レン)
type: MusicRecording
duration: PT3M40S
duration ms: 220700
explicit: false
by artist: あ子,ぐちり,タケノコ少年
in album: 檻の中から愛を込めて
  type: MusicAlbum
  date published: 2021-09-08
genre: vocaloid
isrc code: JPE562107663
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T08:11:04+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x8e7be7b6f8f80f79badc89d4896354f06b6cdee894c26ec84eac4ca6f85048a0
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 957124
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957124
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPE562107663
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T03:53:27Z
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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e7be7b6f8f80f79badc89d4896354f06b6cdee894c26ec84eac4ca6f85048a0. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/JPE562107663.
  date published: 2026-07-08T03:53:27Z
audio: Mr.D (feat. 鏡音レン)
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 145.203
  additional property: Musical Key
    type: PropertyValue
    value: 11
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 0
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.585
  additional property: Energy
    type: PropertyValue
    value: 0.697
  additional property: Speechiness
    type: PropertyValue
    value: 0.041
  additional property: Acousticness
    type: PropertyValue
    value: 0.009
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.171
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.85
  additional property: Loudness (dB)
    type: PropertyValue
    value: -15.742
  additional property: Key Name
    type: PropertyValue
    value: B
  additional property: Mode Name
    type: PropertyValue
    value: Minor

ムジカルマジカルシンドローム (feat. 初音ミク)
type: MusicRecording
duration: PT3M23S
duration ms: 203000
explicit: false
by artist: あ子,ぐちり,タケノコ少年
in album: 檻の中から愛を込めて
  type: MusicAlbum
  date published: 2021-09-08
genre: vocaloid
isrc code: JPE562107664
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-08-01T00:50:07+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xfb5d2537107d5eb803be4c4cb95c0d874b93f3b3f3a8ca4b42efc5d6b0aecaca
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960494
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960494
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPE562107664
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-08-01T01:44:32Z
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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb5d2537107d5eb803be4c4cb95c0d874b93f3b3f3a8ca4b42efc5d6b0aecaca. Chain 2 (Bitcoin): anchored in block 960494 (2026-08-01T01:44:32Z), 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/JPE562107664.
  date published: 2026-08-01T01:44:32Z
audio: ムジカルマジカルシンドローム (feat. 初音ミク)
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 143.841
  additional property: Musical Key
    type: PropertyValue
    value: 6
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.505
  additional property: Energy
    type: PropertyValue
    value: 0.599
  additional property: Speechiness
    type: PropertyValue
    value: 0.041
  additional property: Acousticness
    type: PropertyValue
    value: 0.011
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.213
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.669
  additional property: Loudness (dB)
    type: PropertyValue
    value: -15.84
  additional property: Key Name
    type: PropertyValue
    value: F#
  additional property: Mode Name
    type: PropertyValue
    value: Major

フォーリンデッドリライブライフ (feat. 音街ウナ)
type: MusicRecording
duration: PT3M36S
duration ms: 216700
explicit: false
by artist: あ子,ぐちり,タケノコ少年
in album: 檻の中から愛を込めて
  type: MusicAlbum
  date published: 2021-09-08
genre: vocaloid
isrc code: JPE562107666
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-30T19:03:36+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x8cd94d309a4df65846ccd467d7d3bb5ccc151b35b5393b0dda0a7e9d45c19592
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960298
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960298
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPE562107666
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-30T19:26:00Z
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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
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  date published: 2026-07-30T19:26:00Z
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ディアブロ (feat. 鏡音レン)
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  date published: 2021-09-08
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additional property: OTSVerifyInstructions
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  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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-22T17:48:40Z
audio: ディアブロ (feat. 鏡音レン)
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檻の中から愛を込めて (feat. 初音ミク)
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  date published: 2021-09-08
genre: vocaloid
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additional property: CopyrightStatus
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additional property: OTSVerificationAPI
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additional property: OTSVerifyInstructions
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:20:19Z
audio: 檻の中から愛を込めて (feat. 初音ミク)
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