松尾優
type: MusicGroup
popularity: 12
followers: 1150
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xb9f0a038e1f3b36a105843de68fc11b0e1f4e969213260fdab053d151bf459e2
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953791
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953791
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/dde86625-fd11-4f27-aaca-d8d089bc2dc0.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/dde86625-fd11-4f27-aaca-d8d089bc2dc0.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/dde86625-fd11-4f27-aaca-d8d089bc2dc0
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-15T13:40:30Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xb9f0a038e1f3b36a105843de68fc11b0e1f4e969213260fdab053d151bf459e2","name":"松尾優","registered_at":"2026-06-15T03:52:25Z","symbol":"NIM0673504","token_address":"0xfdc717f51bce3b3b9b2d400f1a038991b256b464","type":"artist","uuid":"dde86625-fd11-4f27-aaca-d8d089bc2dc0"}
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 0xb9f0a038e1f3b36a105843de68fc11b0e1f4e969213260fdab053d151bf459e2. Chain 2 (Bitcoin): anchored in block 953791 (2026-06-15T13:40:30Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/dde86625-fd11-4f27-aaca-d8d089bc2dc0.json and https://artists.proofprofile.net/proofs/artist/dde86625-fd11-4f27-aaca-d8d089bc2dc0.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-15T13:40:30Z
  text: {"copyright_id":"0xb9f0a038e1f3b36a105843de68fc11b0e1f4e969213260fdab053d151bf459e2","name":"松尾優","registered_at":"2026-06-15T03:52:25Z","symbol":"NIM0673504","token_address":"0xfdc717f51bce3b3b9b2d400f1a038991b256b464","type":"artist","uuid":"dde86625-fd11-4f27-aaca-d8d089bc2dc0"}
album: 風とボヤージュ
  type: MusicAlbum
  date published: 2017-11-03
album: 風とボヤージュ
  type: MusicAlbum
  date published: 2017-11-05
album: ライラックの空に
  type: MusicAlbum
  date published: 2019-04-26
album: ライラックの空に
  type: MusicAlbum
  date published: 2019-05-11
album: 君が大人になって (2019)
  type: MusicAlbum
  date published: 2019-05-11
album: 風花
  type: MusicAlbum
  date published: 2021-08-08
album: alive! (2022)
  type: MusicAlbum
  date published: 2022-03-26
album: ALIVE ~Piano collection~
  type: MusicAlbum
  date published: 2022-10-26
album: なまえ
  type: MusicAlbum
  date published: 2023-03-28
album: Eden
  type: MusicAlbum
  date published: 2024-04-27
album: Love Songs
  type: MusicAlbum
  date published: 2024-07-05
album: ピアノウタヒメ
  type: MusicAlbum
  date published: 2024-08-07
  track: 旅立ちの日に
    type: MusicRecording
    duration: PT5M0S
    duration ms: 300555
    explicit: false
    by artist: 松尾優
    in album: ピアノウタヒメ
      type: MusicAlbum
      date published: 2024-08-07
    isrc code: JP92N2428722
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-20T01:22:40+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xfaa00a90a5c564e8e140cad59cf23ca68614e01f15074b636a5a5867797aca61
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958808
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958808
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JP92N2428722
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-20T02:49:15Z
    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 0xfaa00a90a5c564e8e140cad59cf23ca68614e01f15074b636a5a5867797aca61. Chain 2 (Bitcoin): anchored in block 958808 (2026-07-20T02:49:15Z), 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/JP92N2428722.
      date published: 2026-07-20T02:49:15Z
    audio: 旅立ちの日に
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 170.752
      additional property: Musical Key
        type: PropertyValue
        value: 10
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.332
      additional property: Energy
        type: PropertyValue
        value: 0.353
      additional property: Speechiness
        type: PropertyValue
        value: 0.044
      additional property: Acousticness
        type: PropertyValue
        value: 0.98
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.904
      additional property: Liveness
        type: PropertyValue
        value: 0.114
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.098
      additional property: Loudness (dB)
        type: PropertyValue
        value: -14.195
      additional property: Key Name
        type: PropertyValue
        value: Bb
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: ピアノウタヒメⅡ
  type: MusicAlbum
  date published: 2025-09-10
  track: Journey to Fantasy Springs
    type: MusicRecording
    duration: PT3M15S
    duration ms: 195233
    explicit: false
    by artist: 松尾優
    in album: ピアノウタヒメⅡ
      type: MusicAlbum
      date published: 2025-09-10
    isrc code: JP92N2511302
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-20T10:48:21+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x793a09f797e1a52451d51023caec2cb329a64c6b626fb7405d42f99f90cb3f64
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958870
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958870
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JP92N2511302
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-20T13:49:57Z
    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 0x793a09f797e1a52451d51023caec2cb329a64c6b626fb7405d42f99f90cb3f64. Chain 2 (Bitcoin): anchored in block 958870 (2026-07-20T13:49:57Z), 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/JP92N2511302.
      date published: 2026-07-20T13:49:57Z
    audio: Journey to Fantasy Springs
  track: I wonder
  track: mimosa

Journey to Fantasy Springs
type: AudioObject
additional property: Tempo (BPM)
  type: PropertyValue
  value: 182.566
additional property: Musical Key
  type: PropertyValue
  value: 7
additional property: Mode (Major/Minor)
  type: PropertyValue
  value: 1
additional property: Time Signature
  type: PropertyValue
  value: 3
additional property: Danceability
  type: PropertyValue
  value: 0.3
additional property: Energy
  type: PropertyValue
  value: 0.34
additional property: Speechiness
  type: PropertyValue
  value: 0.037
additional property: Acousticness
  type: PropertyValue
  value: 0.969
additional property: Instrumentalness
  type: PropertyValue
  value: 0.909
additional property: Liveness
  type: PropertyValue
  value: 0.105
additional property: Valence (Positivity)
  type: PropertyValue
  value: 0.207
additional property: Loudness (dB)
  type: PropertyValue
  value: -13.481
additional property: Key Name
  type: PropertyValue
  value: G
additional property: Mode Name
  type: PropertyValue
  value: Major

I wonder
type: MusicRecording
duration: PT2M37S
duration ms: 157433
explicit: false
by artist: 松尾優
in album: ピアノウタヒメⅡ
  type: MusicAlbum
  date published: 2025-09-10
isrc code: JP92N2511304
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-05T23:48:02+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x04a7c3be2a34c80f45042deaff517005c3f42e929072df3414d2b45ea087c81f
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/JP92N2511304
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 0x04a7c3be2a34c80f45042deaff517005c3f42e929072df3414d2b45ea087c81f. 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/JP92N2511304.
  date published: 2026-07-06T01:25:57Z
audio: I wonder
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 128.427
  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: 0.607
  additional property: Energy
    type: PropertyValue
    value: 0.388
  additional property: Speechiness
    type: PropertyValue
    value: 0.035
  additional property: Acousticness
    type: PropertyValue
    value: 0.968
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.888
  additional property: Liveness
    type: PropertyValue
    value: 0.117
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.39
  additional property: Loudness (dB)
    type: PropertyValue
    value: -13.393
  additional property: Key Name
    type: PropertyValue
    value: F#
  additional property: Mode Name
    type: PropertyValue
    value: Major

mimosa
type: MusicRecording
duration: PT5M12S
duration ms: 312900
explicit: false
by artist: 松尾優
in album: ピアノウタヒメⅡ
  type: MusicAlbum
  date published: 2025-09-10
isrc code: JP92N2511308
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-19T23:51:45+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xd7d5cca49497bfe0a457d54790c19411b35c6b6f2f9474f076c254c70f3973f7
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 958796
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/958796
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JP92N2511308
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-20T02:53:54Z
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 0xd7d5cca49497bfe0a457d54790c19411b35c6b6f2f9474f076c254c70f3973f7. Chain 2 (Bitcoin): anchored in block 958796 (2026-07-20T02:53:54Z), 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/JP92N2511308.
  date published: 2026-07-20T02:53:54Z
audio: mimosa
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 79.967
  additional property: Musical Key
    type: PropertyValue
    value: 7
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 4
  additional property: Danceability
    type: PropertyValue
    value: 0.478
  additional property: Energy
    type: PropertyValue
    value: 0.394
  additional property: Speechiness
    type: PropertyValue
    value: 0.033
  additional property: Acousticness
    type: PropertyValue
    value: 0.982
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.855
  additional property: Liveness
    type: PropertyValue
    value: 0.174
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.278
  additional property: Loudness (dB)
    type: PropertyValue
    value: -13.539
  additional property: Key Name
    type: PropertyValue
    value: G
  additional property: Mode Name
    type: PropertyValue
    value: Major