坂口喜咲
type: MusicGroup
popularity: 10
followers: 2241
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x5d35cfe3a6082d37def747c952d6d69c8e59c7f337f40cbbe155313700d66f4f
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953947
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953947
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/228bb164-43f6-4795-81a7-6ee7918f6bb9.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/228bb164-43f6-4795-81a7-6ee7918f6bb9.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/228bb164-43f6-4795-81a7-6ee7918f6bb9
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T13:14:26Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x5d35cfe3a6082d37def747c952d6d69c8e59c7f337f40cbbe155313700d66f4f","name":"坂口喜咲","registered_at":"2026-06-16T01:40:59Z","symbol":"NIM0897488","token_address":"0x26b422ecca9671a8844430eb9c812473063fd7fe","type":"artist","uuid":"228bb164-43f6-4795-81a7-6ee7918f6bb9"}
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 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 0x5d35cfe3a6082d37def747c952d6d69c8e59c7f337f40cbbe155313700d66f4f. Chain 2 (Bitcoin): anchored in block 953947 (2026-06-16T13:14:26Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/228bb164-43f6-4795-81a7-6ee7918f6bb9.json and https://artists.proofprofile.net/proofs/artist/228bb164-43f6-4795-81a7-6ee7918f6bb9.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-16T13:14:26Z
  text: {"copyright_id":"0x5d35cfe3a6082d37def747c952d6d69c8e59c7f337f40cbbe155313700d66f4f","name":"坂口喜咲","registered_at":"2026-06-16T01:40:59Z","symbol":"NIM0897488","token_address":"0x26b422ecca9671a8844430eb9c812473063fd7fe","type":"artist","uuid":"228bb164-43f6-4795-81a7-6ee7918f6bb9"}
album: 朝が壊れてもあいしてる
  type: MusicAlbum
  date published: 2015-06-17
album: 朝が壊れてもあいしてる
  type: MusicAlbum
  date published: 2015-06-17
  track: DO-SHE-YOU
    type: MusicRecording
    duration: PT4M15S
    duration ms: 255280
    explicit: false
    by artist: 坂口喜咲
    in album: 朝が壊れてもあいしてる
      type: MusicAlbum
      date published: 2015-06-17
    isrc code: JPA962000072
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-22T07:23:16+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x1bb49bfcde8880ef02a56d3a168b0f2527efa6a1f419d66ec1b9ede7605da5ea
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 959114
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/959114
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPA962000072
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-22T08:41:42Z
    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 0x1bb49bfcde8880ef02a56d3a168b0f2527efa6a1f419d66ec1b9ede7605da5ea. Chain 2 (Bitcoin): anchored in block 959114 (2026-07-22T08:41:42Z), 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/JPA962000072.
      date published: 2026-07-22T08:41:42Z
    audio: DO-SHE-YOU
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 95.005
      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: 0.66
      additional property: Energy
        type: PropertyValue
        value: 0.768
      additional property: Speechiness
        type: PropertyValue
        value: 0.041
      additional property: Acousticness
        type: PropertyValue
        value: 0.125
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.315
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.755
      additional property: Loudness (dB)
        type: PropertyValue
        value: -6.005
      additional property: Key Name
        type: PropertyValue
        value: D
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: 朝が壊れてもあいしてる
  type: MusicAlbum
  date published: 2015-06-17
album: あなたはやさしかった
  type: MusicAlbum
  date published: 2018-06-20
album: あなたはやさしかった
  type: MusicAlbum
  date published: 2018-06-20
album: 犬と苺
  type: MusicAlbum
  date published: 2019
album: 犬と苺
  type: MusicAlbum
  date published: 2019-09-07
album: 病院まではとても遠い
  type: MusicAlbum
  date published: 2019-11-27
album: 病院まではとても遠い
  type: MusicAlbum
  date published: 2019-12-17
album: 病院まではとても遠い
  type: MusicAlbum
  date published: 2019-12-17
  track: 病院まではとても遠い
    type: MusicRecording
    duration: PT3M17S
    duration ms: 197260
    explicit: false
    by artist: 坂口喜咲
    in album: 病院まではとても遠い
      type: MusicAlbum
      date published: 2019-12-17
    isrc code: JPA961980129
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-16T19:53:08+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xc99216d24d6692e1292a5cf67c117792d11a8bf7e9e0bf4a3e90899ca362db73
    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/JPA961980129
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-16T20:12:32Z
    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 0xc99216d24d6692e1292a5cf67c117792d11a8bf7e9e0bf4a3e90899ca362db73. Chain 2 (Bitcoin): anchored in block 958319 (2026-07-16T20:12:32Z), 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/JPA961980129.
      date published: 2026-07-16T20:12:32Z
    audio: 病院まではとても遠い
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 72.836
      additional property: Musical Key
        type: PropertyValue
        value: 2
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
      additional property: Danceability
      additional property: Energy
      additional property: Speechiness
      additional property: Acousticness
      additional property: Instrumentalness
      additional property: Liveness
      additional property: Valence (Positivity)
      additional property: Loudness (dB)
      additional property: Key Name
      additional property: Mode Name
album: 光合成
album: kougousei
album: Veils
album: aidakeha
album: 愛だけは
album: キッチン
album: kitchen
album: FRUITS ALBUM
album: わたしたちはきっと

Time Signature
type: PropertyValue
value: 4

Danceability
type: PropertyValue
value: 0.635

Energy
type: PropertyValue
value: 0.249

Speechiness
type: PropertyValue
value: 0.044

Acousticness
type: PropertyValue
value: 0.945

Instrumentalness
type: PropertyValue
value: 0.045

Liveness
type: PropertyValue
value: 0.313

Valence (Positivity)
type: PropertyValue
value: 0.338

Loudness (dB)
type: PropertyValue
value: -11.175

Key Name
type: PropertyValue
value: D

Mode Name
type: PropertyValue
value: Major

光合成
type: MusicAlbum
date published: 2021-07-28

kougousei
type: MusicAlbum
date published: 2021-07-28

Veils
type: MusicAlbum
date published: 2021-12-24

Veils
type: MusicAlbum
date published: 2021-12-24

aidakeha
type: MusicAlbum
date published: 2023-07-26

愛だけは
type: MusicAlbum
date published: 2023-07-26

キッチン
type: MusicAlbum
date published: 2023-09-13

kitchen
type: MusicAlbum
date published: 2023-09-13

FRUITS ALBUM
type: MusicAlbum
date published: 2024-07-10

わたしたちはきっと
type: MusicAlbum
date published: 2025-07-04
track: わたしたちはきっと
  type: MusicRecording
  duration: PT2M49S
  duration ms: 169624
  explicit: false
  by artist: 坂口喜咲
  in album: わたしたちはきっと
    type: MusicAlbum
    date published: 2025-07-04
  isrc code: TCJPI2584920
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-03T06:48:20+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x3164f1a06d04413611b5f31210093175105bd02e5f05e234ec92cb201c2a4913
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 956634
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/956634
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCJPI2584920
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-04T10:04:33Z
  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 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 0x3164f1a06d04413611b5f31210093175105bd02e5f05e234ec92cb201c2a4913. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/TCJPI2584920.
    date published: 2026-07-04T10:04:33Z
  audio: わたしたちはきっと
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 133.037
    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: 0.773
    additional property: Energy
      type: PropertyValue
      value: 0.483
    additional property: Speechiness
      type: PropertyValue
      value: 0.036
    additional property: Acousticness
      type: PropertyValue
      value: 0.756
    additional property: Instrumentalness
      type: PropertyValue
      value: 0.008
    additional property: Liveness
      type: PropertyValue
      value: 0.126
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.798
    additional property: Loudness (dB)
      type: PropertyValue
      value: -8.551
    additional property: Key Name
      type: PropertyValue
      value: C#
    additional property: Mode Name
      type: PropertyValue
      value: Major