秋山竜次
type: MusicGroup
genre: kayokyoku
popularity: 23
followers: 1801
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
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  value: https://explorer.copyrightchains.com/tx/0x22ee0560d617ba7ff107482d75e8aa813ac0fd0be3aaa8e1dce51eb90fd90205
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/5ef891f3-63c7-41ed-a052-1b42d1c9772a.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/5ef891f3-63c7-41ed-a052-1b42d1c9772a.json
additional property: OTSVerificationAPI
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  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/5ef891f3-63c7-41ed-a052-1b42d1c9772a
additional property: OTSTimestamp
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  value: 2026-06-12T19:24:56Z
additional property: OTSCanonicalRecord
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  value: {"copyright_id":"0x22ee0560d617ba7ff107482d75e8aa813ac0fd0be3aaa8e1dce51eb90fd90205","name":"秋山竜次","registered_at":"2026-06-11T22:03:38Z","symbol":"NIM0122359","token_address":"0x213b92c9b971eebc095961fc08862e748cb909ce","type":"artist","uuid":"5ef891f3-63c7-41ed-a052-1b42d1c9772a"}
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 0x22ee0560d617ba7ff107482d75e8aa813ac0fd0be3aaa8e1dce51eb90fd90205. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/5ef891f3-63c7-41ed-a052-1b42d1c9772a.json and https://artists.proofprofile.net/proofs/artist/5ef891f3-63c7-41ed-a052-1b42d1c9772a.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-12T21:20:00Z
  text: {"copyright_id":"0x22ee0560d617ba7ff107482d75e8aa813ac0fd0be3aaa8e1dce51eb90fd90205","name":"秋山竜次","registered_at":"2026-06-11T22:03:38Z","symbol":"NIM0122359","token_address":"0x213b92c9b971eebc095961fc08862e748cb909ce","type":"artist","uuid":"5ef891f3-63c7-41ed-a052-1b42d1c9772a"}
album: エアポート☆レトロベイビー
  type: MusicAlbum
  date published: 2024-07-02
album: It’s So Men!
  type: MusicAlbum
  date published: 2024-07-09
album: あやしくないから
  type: MusicAlbum
  date published: 2024-08-06
album: GONGORA〜楽しい時間はもう終わり〜
  type: MusicAlbum
  date published: 2024-08-13
album: 謎女~nazo onna~
  type: MusicAlbum
  date published: 2024-09-07
album: Pori Pori
  type: MusicAlbum
  date published: 2024-10-05
album: あやしくないから (〜公式精神解放REMIX〜)
  type: MusicAlbum
  date published: 2024-12-07
  track: あやしくないから - 〜公式精神解放REMIX〜
    type: MusicRecording
    duration: PT2M57S
    duration ms: 177560
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    by artist: 秋山竜次
    in album: あやしくないから (〜公式精神解放REMIX〜)
      type: MusicAlbum
      date published: 2024-12-07
    genre: kayokyoku
    isrc code: TCJPC2471275
    additional property: CopyrightID
    additional property: CopyrightStatus
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      value: registered
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      type: PropertyValue
      value: 2026-07-16T22:10:31+00:00
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      type: PropertyValue
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    additional property: OTSHash
    additional property: OTSBitcoinBlock
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    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958335
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCJPC2471275
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-16T22:37:47Z
    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 0x7d4ba1c63cde5d36b3576797cf382718d68d460a0fdebc2295f0f36f6195da55. Chain 2 (Bitcoin): anchored in block 958335 (2026-07-16T22:37:47Z), 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/TCJPC2471275.
      date published: 2026-07-16T22:37:47Z
    audio: あやしくないから - 〜公式精神解放REMIX〜
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      additional property: Tempo (BPM)
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        value: 122.995
      additional property: Musical Key
        type: PropertyValue
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      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
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      additional property: Danceability
        type: PropertyValue
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      additional property: Energy
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      additional property: Speechiness
        type: PropertyValue
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      additional property: Acousticness
        type: PropertyValue
        value: 0.007
      additional property: Instrumentalness
        type: PropertyValue
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      additional property: Liveness
        type: PropertyValue
        value: 0.123
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.708
      additional property: Loudness (dB)
        type: PropertyValue
        value: -6.806
      additional property: Key Name
        type: PropertyValue
        value: C#
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: 校歌「あぁ◯◯◯学校」〜あけといたんで歌ってください〜
  type: MusicAlbum
  date published: 2024-12-28
  track: 校歌「あぁ◯◯◯学校」〜あけといたんで歌ってください〜
    type: MusicRecording
    duration: PT2M38S
    duration ms: 158000
    explicit: false
    by artist: 秋山竜次
    in album: 校歌「あぁ◯◯◯学校」〜あけといたんで歌ってください〜
      type: MusicAlbum
      date published: 2024-12-28
    genre: kayokyoku
    isrc code: TCJPD2401134
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-03T17:19:24+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x76be20b821cd074abef64024c979b698a84c2adef6a7c360a8810abcd9f9373c
    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
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      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCJPD2401134
    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 0x76be20b821cd074abef64024c979b698a84c2adef6a7c360a8810abcd9f9373c. 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/TCJPD2401134.
      date published: 2026-07-03T19:59:51Z
    audio: 校歌「あぁ◯◯◯学校」〜あけといたんで歌ってください〜
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 161.586
      additional property: Musical Key
        type: PropertyValue
        value: 8
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 3
      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
  track: 校歌「あぁ◯◯◯学校」〜あけといたんで歌ってください〜カラオケ
album: 関係者〜ぼくにもなれるかな？〜
album: ごきげんよう、りゅうくん。

Danceability
type: PropertyValue
value: 0.36

Energy
type: PropertyValue
value: 0.547

Speechiness
type: PropertyValue
value: 0.034

Acousticness
type: PropertyValue
value: 0.798

Instrumentalness
type: PropertyValue
value: 0.003

Liveness
type: PropertyValue
value: 0.127

Valence (Positivity)
type: PropertyValue
value: 0.188

Loudness (dB)
type: PropertyValue
value: -5.244

Key Name
type: PropertyValue
value: Ab

Mode Name
type: PropertyValue
value: Major

校歌「あぁ◯◯◯学校」〜あけといたんで歌ってください〜カラオケ
type: MusicRecording
duration: PT2M38S
duration ms: 158000
explicit: false
by artist: 秋山竜次
in album: 校歌「あぁ◯◯◯学校」〜あけといたんで歌ってください〜
  type: MusicAlbum
  date published: 2024-12-28
genre: kayokyoku
isrc code: TCJPD2401127
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
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  value: 2026-07-20T00:12:35+00:00
additional property: CopyrightChainExplorerURL
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  value: https://explorer.copyrightchains.com/tx/0x97e95b8da4c6ec1626fe3fa7465885ec02fc67b51d43e5e54582d8c173cd3278
additional property: OTSHash
additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/958802
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCJPD2401127
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-20T03:11:09Z
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 0x97e95b8da4c6ec1626fe3fa7465885ec02fc67b51d43e5e54582d8c173cd3278. Chain 2 (Bitcoin): anchored in block 958802 (2026-07-20T03:11:09Z), 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/TCJPD2401127.
  date published: 2026-07-20T03:11:09Z
audio: 校歌「あぁ◯◯◯学校」〜あけといたんで歌ってください〜カラオケ
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 161.921
  additional property: Musical Key
    type: PropertyValue
    value: 8
  additional property: Mode (Major/Minor)
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    value: 1
  additional property: Time Signature
    type: PropertyValue
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  additional property: Danceability
    type: PropertyValue
    value: 0.566
  additional property: Energy
    type: PropertyValue
    value: 0.547
  additional property: Speechiness
    type: PropertyValue
    value: 0.032
  additional property: Acousticness
    type: PropertyValue
    value: 0.475
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.775
  additional property: Liveness
    type: PropertyValue
    value: 0.117
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.098
  additional property: Loudness (dB)
    type: PropertyValue
    value: -9.582
  additional property: Key Name
    type: PropertyValue
    value: Ab
  additional property: Mode Name
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関係者〜ぼくにもなれるかな？〜
type: MusicAlbum
date published: 2025-01-18

ごきげんよう、りゅうくん。
type: MusicAlbum
date published: 2025-08-02
track: ごきげんよう、りゅうくん。
  type: MusicRecording
  duration: PT2M45S
  duration ms: 165000
  explicit: false
  by artist: 秋山竜次
  in album: ごきげんよう、りゅうくん。
    type: MusicAlbum
    date published: 2025-08-02
  genre: kayokyoku
  isrc code: TCJPK2538397
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-04T20:52:41+00:00
  additional property: CopyrightChainExplorerURL
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  additional property: OTSBitcoinBlock
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  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
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  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCJPK2538397
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-05T01:43:49Z
  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 0xf403379711454b247ecea0bcc5a28500c3db94d4bfb45bfb23460784acb8ac21. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/TCJPK2538397.
    date published: 2026-07-05T01:43:49Z
  audio: ごきげんよう、りゅうくん。
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    additional property: Tempo (BPM)
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    additional property: Musical Key
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    additional property: Mode (Major/Minor)
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    additional property: Time Signature
      type: PropertyValue
      value: 4
    additional property: Danceability
      type: PropertyValue
      value: 0.839
    additional property: Energy
      type: PropertyValue
      value: 0.549
    additional property: Speechiness
      type: PropertyValue
      value: 0.249
    additional property: Acousticness
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    additional property: Instrumentalness
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    additional property: Liveness
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    additional property: Valence (Positivity)
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    additional property: Key Name
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