UNDER GRAPH
type: MusicGroup
genre: j-pop
description: Under Graph is a Japanese band that was formed in 1997. Member profiles Vocals/Guitar: Naoto Matohara (真戸原 直人, Matohara Naoto) Birthdate: July 27, 1977 Equipment: Gibson ES-325 Fender customshop '69s
popularity: 35
followers: 19819
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x20731b85ab0c39df95c64503a3f66ebb99c6891e579902d3e37f2c52f9bf0c48
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/243c1f0a-a0bd-40f6-899a-d551b65642a4.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/243c1f0a-a0bd-40f6-899a-d551b65642a4.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/243c1f0a-a0bd-40f6-899a-d551b65642a4
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-12T19:24:56Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x20731b85ab0c39df95c64503a3f66ebb99c6891e579902d3e37f2c52f9bf0c48","name":"UNDER GRAPH","registered_at":"2026-06-11T14:22:17Z","symbol":"NIM0047663","token_address":"0xe60a97313936bc95732d50e91fa143b4946705e7","type":"artist","uuid":"243c1f0a-a0bd-40f6-899a-d551b65642a4"}
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 0x20731b85ab0c39df95c64503a3f66ebb99c6891e579902d3e37f2c52f9bf0c48. 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/243c1f0a-a0bd-40f6-899a-d551b65642a4.json and https://artists.proofprofile.net/proofs/artist/243c1f0a-a0bd-40f6-899a-d551b65642a4.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-12T19:24:56Z
  text: {"copyright_id":"0x20731b85ab0c39df95c64503a3f66ebb99c6891e579902d3e37f2c52f9bf0c48","name":"UNDER GRAPH","registered_at":"2026-06-11T14:22:17Z","symbol":"NIM0047663","token_address":"0xe60a97313936bc95732d50e91fa143b4946705e7","type":"artist","uuid":"243c1f0a-a0bd-40f6-899a-d551b65642a4"}
album: いつの日か晴れた日に
  type: MusicAlbum
  date published: 2000-08-12
album: いつの日か晴れた日に
  type: MusicAlbum
  date published: 2000-08-12
album: itsunohika haretahi ni
  type: MusicAlbum
  date published: 2000-08-12
album: que sera sera
  type: MusicAlbum
  date published: 2002-09-25
album: ケ・セラ・セラ
  type: MusicAlbum
  date published: 2002-09-25
album: ゼロへの調和
  type: MusicAlbum
  date published: 2005-06-15
  track: アンブレラ
    type: MusicRecording
    duration: PT4M42S
    duration ms: 282600
    explicit: false
    by artist: UNDER GRAPH
    in album: ゼロへの調和
      type: MusicAlbum
      date published: 2005-06-15
    genre: j-pop
    isrc code: JPFL00500990
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-04T23:35:25+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x89129aac29fd227cc464bf5af84d44e64e02aa9d8e156112cd9db3964c1dda5e
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 956725
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/956725
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPFL00500990
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-05T01:12:41Z
    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 0x89129aac29fd227cc464bf5af84d44e64e02aa9d8e156112cd9db3964c1dda5e. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/JPFL00500990.
      date published: 2026-07-05T01:12:41Z
    audio: アンブレラ
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 199.969
      additional property: Musical Key
        type: PropertyValue
        value: 9
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.535
      additional property: Energy
        type: PropertyValue
        value: 0.568
      additional property: Speechiness
        type: PropertyValue
        value: 0.03
      additional property: Acousticness
        type: PropertyValue
        value: 0.588
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.148
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.828
      additional property: Loudness (dB)
        type: PropertyValue
        value: -8.618
      additional property: Key Name
        type: PropertyValue
        value: A
      additional property: Mode Name
        type: PropertyValue
        value: Major
  track: 君の声
    type: MusicRecording
    duration: PT5M20S
    duration ms: 320053
    explicit: false
    by artist: UNDER GRAPH
    in album: ゼロへの調和
      type: MusicAlbum
      date published: 2005-06-15
    genre: j-pop
    isrc code: JPFL00500200
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-06-29T00:58:17+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x4b616eb4a2070167b6a0aeff1c1df5e0b5e4f638bc5d0655db8b09f46aeaee35
    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/JPFL00500200
    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 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 0x4b616eb4a2070167b6a0aeff1c1df5e0b5e4f638bc5d0655db8b09f46aeaee35. 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/JPFL00500200.
      date published: 2026-07-02T16:51:38Z
    audio: 君の声
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 149.879
      additional property: Musical Key
        type: PropertyValue
        value: 0
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.447
      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: 素晴らしき日常
album: 呼吸する時間
album: この場所に生まれた僕達は いつも何が出来るかを考えている
album: 夏影
album: UNDER GRAPH
album: Katengechi
album: Katengecchi
album: 花天月地
album: Ao No Toki
album: When blue
album: 蒼の時
album: 7 + one ～音の彩り～
album: 7 + one
album: 風を呼べ
album: 未来は続くよどこまでも
album: やがて咲く花達ヘ
album: 1977年生まれの僕らは
album: おけいはんパレード
album: Okeihan Parade
album: bokurawa kawarazuni kawarituzukeru tabiwosuru2015 (Live at EX THEATER ROPPONGI 2015.09.12)
album: 僕らは変わらずに、変わり続ける旅をする2015 (Live at EX THEATER ROPPONGI 2015.09.12)
album: KIMIRASHIKU SAKU HANA TO NARE (Live at 東京グローブ座 2015.03.14)
album: KIMIRASHIKU SAKU HANA TO NARE (Live at The Globe Tokyo 2015.03.14)
album: 翼 (road to 2020.Infiorata ver.)
album: TSUBASA (road to 2020.Infiorata ver.)
album: TSUNAGARU
album: まだ見ぬ世界を映しながら
album: Looking into the future ~while we're reflecting the unseen world~
album: parabola ～更なる高みへ～
album: parabola -Aim High-
album: saigetsu
album: 歳月
album: 君が笑うため生きてる
album: kimiga warautame ikiteru
album: マクロスコピック自由論
album: macroscopic jiyuuron
album: taiyou no te
album: 太陽の手
album: ikiru
album: イキル
album: ストライド
album: stride
album: SOS
album: UNDER GRAPH 20th BEST music box
album: grief wo koete
album: グリーフを越えて
album: 存在の共鳴
album: sonzai no kyoumei
album: 今、僕ら平和な空を見ている。
album: ima bokura heiwanasora wo miteiru
album: 音楽の盾
album: ongaku no tate
album: THEME OF PANTHERS
album: 薄明
album: hakumei
album: ai kawarazu
album: Onkyo resilience

Energy
type: PropertyValue
value: 0.502

Speechiness
type: PropertyValue
value: 0.028

Acousticness
type: PropertyValue
value: 0.018

Instrumentalness
type: PropertyValue
value: 0

Liveness
type: PropertyValue
value: 0.117

Valence (Positivity)
type: PropertyValue
value: 0.634

Loudness (dB)
type: PropertyValue
value: -5.376

Key Name
type: PropertyValue
value: C

Mode Name
type: PropertyValue
value: Major

素晴らしき日常
type: MusicAlbum
date published: 2006-07-19
track: パラダイム
  type: MusicRecording
  duration: PT5M5S
  duration ms: 305733
  explicit: false
  by artist: UNDER GRAPH
  in album: 素晴らしき日常
    type: MusicAlbum
    date published: 2006-07-19
  genre: j-pop
  isrc code: JPFL00502450
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-18T03:57:19+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x77212bae22650af130c3cd21a4430135565bf94feb5aceda234110166669308a
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 958489
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/958489
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPFL00502450
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-18T04:13:26Z
  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 0x77212bae22650af130c3cd21a4430135565bf94feb5aceda234110166669308a. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/JPFL00502450.
    date published: 2026-07-18T04:13:26Z
  audio: パラダイム
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 134.063
    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: 0.533
    additional property: Energy
      type: PropertyValue
      value: 0.886
    additional property: Speechiness
      type: PropertyValue
      value: 0.034
    additional property: Acousticness
      type: PropertyValue
      value: 0.007
    additional property: Instrumentalness
      type: PropertyValue
      value: 0
    additional property: Liveness
      type: PropertyValue
      value: 0.342
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.784
    additional property: Loudness (dB)
      type: PropertyValue
      value: -3.138
    additional property: Key Name
      type: PropertyValue
      value: Bb
    additional property: Mode Name
      type: PropertyValue
      value: Major
track: 言葉
  type: MusicRecording
  duration: PT4M36S
  duration ms: 276426
  explicit: false
  by artist: UNDER GRAPH
  in album: 素晴らしき日常
    type: MusicAlbum
    date published: 2006-07-19
  genre: j-pop
  isrc code: JPFL00601270
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-21T14:49:10+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0xe417fa87c44b9b86c7a6882bc7d13aa93e3fa936bf91273be871e2e20cb6b6c0
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 959023
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/959023
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPFL00601270
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-21T15:22:58Z
  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 0xe417fa87c44b9b86c7a6882bc7d13aa93e3fa936bf91273be871e2e20cb6b6c0. Chain 2 (Bitcoin): anchored in block 959023 (2026-07-21T15:22:58Z), 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/JPFL00601270.
    date published: 2026-07-21T15:22:58Z
  audio: 言葉
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 108.831
    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: 0.627
    additional property: Energy
      type: PropertyValue
      value: 0.788
    additional property: Speechiness
      type: PropertyValue
      value: 0.03
    additional property: Acousticness
      type: PropertyValue
      value: 0.3
    additional property: Instrumentalness
      type: PropertyValue
      value: 0
    additional property: Liveness
      type: PropertyValue
      value: 0.305
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.685
    additional property: Loudness (dB)
      type: PropertyValue
      value: -4.247
    additional property: Key Name
      type: PropertyValue
      value: F
    additional property: Mode Name
      type: PropertyValue
      value: Major
track: 真面目過ぎる君へ
  type: MusicRecording
  duration: PT4M36S
  duration ms: 276280
  explicit: false
  by artist: UNDER GRAPH
  in album: 素晴らしき日常
    type: MusicAlbum
    date published: 2006-07-19
  genre: j-pop
  isrc code: JPFL00600070
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-03T14:36:27+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x24218a279c5f65fa6038cf43526095bad9c48cb81fb013e21616d5d1bcd0b76d
  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
  additional property: OTSTimestamp
  additional property: OTSVerifyInstructions
  subject of: OpenTimestamps Proof of Existence
  audio: 真面目過ぎる君へ

OTSVerificationAPI
type: PropertyValue
value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPFL00600070

OTSTimestamp
type: PropertyValue
value: 2026-07-03T19:59:51Z

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 0x24218a279c5f65fa6038cf43526095bad9c48cb81fb013e21616d5d1bcd0b76d. 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/JPFL00600070.
date published: 2026-07-03T19:59:51Z

真面目過ぎる君へ
type: AudioObject
additional property: Tempo (BPM)
  type: PropertyValue
  value: 76.991
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: 0.547
additional property: Energy
  type: PropertyValue
  value: 0.62
additional property: Speechiness
  type: PropertyValue
  value: 0.027
additional property: Acousticness
  type: PropertyValue
  value: 0.042
additional property: Instrumentalness
  type: PropertyValue
  value: 0
additional property: Liveness
  type: PropertyValue
  value: 0.165
additional property: Valence (Positivity)
  type: PropertyValue
  value: 0.431
additional property: Loudness (dB)
  type: PropertyValue
  value: -4.904
additional property: Key Name
  type: PropertyValue
  value: F
additional property: Mode Name
  type: PropertyValue
  value: Major

呼吸する時間
type: MusicAlbum
date published: 2008-01-09

この場所に生まれた僕達は いつも何が出来るかを考えている
type: MusicAlbum
date published: 2009-05-27

夏影
type: MusicAlbum
date published: 2010-08-11

UNDER GRAPH
type: MusicAlbum
date published: 2010-09-15

Katengechi
type: MusicAlbum
date published: 2011-04-27

Katengecchi
type: MusicAlbum
date published: 2011-04-27

花天月地
type: MusicAlbum
date published: 2011-04-27

Ao No Toki
type: MusicAlbum
date published: 2011-07-27

When blue
type: MusicAlbum
date published: 2011-07-27

蒼の時
type: MusicAlbum
date published: 2011-07-27

7 + one ～音の彩り～
type: MusicAlbum
date published: 2013-07-03

7 + one
type: MusicAlbum
date published: 2013-07-03

風を呼べ
type: MusicAlbum
date published: 2013-11-20

未来は続くよどこまでも
type: MusicAlbum
date published: 2014-07-09

やがて咲く花達ヘ
type: MusicAlbum
date published: 2014-11-05

1977年生まれの僕らは
type: MusicAlbum
date published: 2015-07-08

おけいはんパレード
type: MusicAlbum
date published: 2015-12-03

Okeihan Parade
type: MusicAlbum
date published: 2015-12-03

bokurawa kawarazuni kawarituzukeru tabiwosuru2015 (Live at EX THEATER ROPPONGI 2015.09.12)
type: MusicAlbum
date published: 2017-04-05

僕らは変わらずに、変わり続ける旅をする2015 (Live at EX THEATER ROPPONGI 2015.09.12)
type: MusicAlbum
date published: 2017-04-05

KIMIRASHIKU SAKU HANA TO NARE (Live at 東京グローブ座 2015.03.14)
type: MusicAlbum
date published: 2017-07-19
track: ツバサ - 2014 10th anniversary version - Live at 東京グローブ座 2015.03.14
  type: MusicRecording
  duration: PT4M45S
  duration ms: 285287
  explicit: false
  by artist: UNDER GRAPH
  in album: KIMIRASHIKU SAKU HANA TO NARE (Live at 東京グローブ座 2015.03.14)
    type: MusicAlbum
    date published: 2017-07-19
  genre: j-pop
  isrc code: TCJPK2026287
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-06T05:51:29+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x5a6f96ff447de64822e327c6f64b782b7b532d5b701e1db08f017bd3271c65d2
  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
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCJPK2026287
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-06T06:56:49Z
  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 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 0x5a6f96ff447de64822e327c6f64b782b7b532d5b701e1db08f017bd3271c65d2. 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/TCJPK2026287.
    date published: 2026-07-06T06:56:49Z
  audio: ツバサ - 2014 10th anniversary version - Live at 東京グローブ座 2015.03.14
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 203.879
    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: 0.331
    additional property: Energy
      type: PropertyValue
      value: 0.845
    additional property: Speechiness
      type: PropertyValue
      value: 0.059
    additional property: Acousticness
      type: PropertyValue
      value: 0.16
    additional property: Instrumentalness
      type: PropertyValue
      value: 0
    additional property: Liveness
      type: PropertyValue
      value: 0.351
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.664
    additional property: Loudness (dB)
      type: PropertyValue
      value: -5.052
    additional property: Key Name
      type: PropertyValue
      value: B
    additional property: Mode Name
      type: PropertyValue
      value: Minor

KIMIRASHIKU SAKU HANA TO NARE (Live at The Globe Tokyo 2015.03.14)
type: MusicAlbum
date published: 2017-07-19

翼 (road to 2020.Infiorata ver.)
type: MusicAlbum
date published: 2017-07-25

TSUBASA (road to 2020.Infiorata ver.)
type: MusicAlbum
date published: 2017-07-25

TSUNAGARU
type: MusicAlbum
date published: 2017-09-22

TSUNAGARU
type: MusicAlbum
date published: 2017-09-22

まだ見ぬ世界を映しながら
type: MusicAlbum
date published: 2018-10-01

Looking into the future ~while we're reflecting the unseen world~
type: MusicAlbum
date published: 2018-11-09

parabola ～更なる高みへ～
type: MusicAlbum
date published: 2018-12-21

parabola ～更なる高みへ～
type: MusicAlbum
date published: 2019-01-05

parabola -Aim High-
type: MusicAlbum
date published: 2019-01-05

saigetsu
type: MusicAlbum
date published: 2019-02-14

歳月
type: MusicAlbum
date published: 2019-02-14

君が笑うため生きてる
type: MusicAlbum
date published: 2019-09-13

君が笑うため生きてる
type: MusicAlbum
date published: 2019-09-13

kimiga warautame ikiteru
type: MusicAlbum
date published: 2019-09-13

マクロスコピック自由論
type: MusicAlbum
date published: 2019-09-22

macroscopic jiyuuron
type: MusicAlbum
date published: 2019-09-22

マクロスコピック自由論
type: MusicAlbum
date published: 2019-09-22
track: 翼 - road to 2020. Infiorata ver.
  type: MusicRecording
  duration: PT3M51S
  duration ms: 231124
  explicit: false
  by artist: UNDER GRAPH
  in album: マクロスコピック自由論
    type: MusicAlbum
    date published: 2019-09-22
  genre: j-pop
  isrc code: JPZ921905905
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-03T17:32:06+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0xbfb33c26ef6155b464abadfbb811ed2898199f2871edf884bee28ac77d931093
  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/JPZ921905905
  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 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 0xbfb33c26ef6155b464abadfbb811ed2898199f2871edf884bee28ac77d931093. 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/JPZ921905905.
    date published: 2026-07-03T19:59:51Z
  audio: 翼 - road to 2020. Infiorata ver.
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 98.981
    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: 0.558
    additional property: Energy
      type: PropertyValue
      value: 0.482
    additional property: Speechiness
      type: PropertyValue
      value: 0.024
    additional property: Acousticness
      type: PropertyValue
      value: 0.532
    additional property: Instrumentalness
      type: PropertyValue
      value: 0
    additional property: Liveness
      type: PropertyValue
      value: 0.08
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.453
    additional property: Loudness (dB)
      type: PropertyValue
      value: -5.47
    additional property: Key Name
      type: PropertyValue
      value: A
    additional property: Mode Name
      type: PropertyValue
      value: Minor

taiyou no te
type: MusicAlbum
date published: 2020-02-02

太陽の手
type: MusicAlbum
date published: 2020-02-02

KIMIRASHIKU SAKU HANA TO NARE (Live at 東京グローブ座 2015.03.14)
type: MusicAlbum
date published: 2020-02-15

ikiru
type: MusicAlbum
date published: 2020-02-20

イキル
type: MusicAlbum
date published: 2020-02-20

ストライド
type: MusicAlbum
date published: 2020-07-12

stride
type: MusicAlbum
date published: 2020-07-12

ストライド
type: MusicAlbum
date published: 2020-07-12

SOS
type: MusicAlbum
date published: 2020-08-08

UNDER GRAPH 20th BEST music box
type: MusicAlbum
date published: 2020-08-08

SOS
type: MusicAlbum
date published: 2020-08-08

SOS
type: MusicAlbum
date published: 2020-08-08

UNDER GRAPH 20th BEST music box
type: MusicAlbum
date published: 2020-08-08

grief wo koete
type: MusicAlbum
date published: 2020-09-23

グリーフを越えて
type: MusicAlbum
date published: 2020-09-23

存在の共鳴
type: MusicAlbum
date published: 2020-12-23

sonzai no kyoumei
type: MusicAlbum
date published: 2020-12-23

存在の共鳴
type: MusicAlbum
date published: 2020-12-23

今、僕ら平和な空を見ている。
type: MusicAlbum
date published: 2021-08-15

ima bokura heiwanasora wo miteiru
type: MusicAlbum
date published: 2021-08-15

音楽の盾
type: MusicAlbum
date published: 2022-05-25
track: インサイドベット
  type: MusicRecording
  duration: PT3M29S
  duration ms: 209066
  explicit: false
  by artist: UNDER GRAPH
  in album: 音楽の盾
    type: MusicAlbum
    date published: 2022-05-25
  genre: j-pop
  isrc code: JPZ922203615
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-06T02:43:28+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x43646fc464a87bc4cda35218c86d361c48998a0c1d439959b12be48e4705de34
  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
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPZ922203615
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-06T06:56:49Z
  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 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 0x43646fc464a87bc4cda35218c86d361c48998a0c1d439959b12be48e4705de34. 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/JPZ922203615.
    date published: 2026-07-06T06:56:49Z
  audio: インサイドベット
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 138.966
    additional property: Musical Key
      type: PropertyValue
      value: 8
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 0
    additional property: Time Signature
      type: PropertyValue
      value: 4
    additional property: Danceability
      type: PropertyValue
      value: 0.533
    additional property: Energy
      type: PropertyValue
      value: 0.903
    additional property: Speechiness
      type: PropertyValue
      value: 0.052
    additional property: Acousticness
      type: PropertyValue
      value: 0
    additional property: Instrumentalness
      type: PropertyValue
      value: 0
    additional property: Liveness
      type: PropertyValue
      value: 0.327
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.811
    additional property: Loudness (dB)
      type: PropertyValue
      value: -3.73
    additional property: Key Name
      type: PropertyValue
      value: Ab
    additional property: Mode Name
      type: PropertyValue
      value: Minor

ongaku no tate
type: MusicAlbum
date published: 2022-05-25

THEME OF PANTHERS
type: MusicAlbum
date published: 2022-12-21

THEME OF PANTHERS
type: MusicAlbum
date published: 2022-12-21

薄明
type: MusicAlbum
date published: 2023-02-15

hakumei
type: MusicAlbum
date published: 2023-02-15

ai kawarazu
type: MusicAlbum
date published: 2023-02-15

Onkyo resilience
type: MusicAlbum
date published: 2023-06-21

音響レジリエンス
type: MusicAlbum
date published: 2023-06-21

新しい自分へ
type: MusicAlbum
date published: 2024-02-21

tsubasa (Re-recorded)
type: MusicAlbum
date published: 2024-09-22

tsubasa (Re-recorded)
type: MusicAlbum
date published: 2024-09-22

ツバサ (Re-recorded)
type: MusicAlbum
date published: 2024-09-22

ツバサ (Re-recorded)
type: MusicAlbum
date published: 2024-09-22

Debut 20th Anniversary
type: MusicAlbum
date published: 2024-09-25

Debut 20th Anniversary
type: MusicAlbum
date published: 2024-09-25

Debut 20th Anniversary music box
type: MusicAlbum
date published: 2024-09-25

Debut 20th Anniversary music box
type: MusicAlbum
date published: 2024-09-25

wyvernsペネトレイト
type: MusicAlbum
date published: 2024-10-02

wyverns penetrate
type: MusicAlbum
date published: 2024-10-02

THEME OF OSAKA BLUTEON
type: MusicAlbum
date published: 2024-10-09
track: THEME OF OSAKA BLUTEON
  type: MusicRecording
  duration: PT3M17S
  duration ms: 197265
  explicit: false
  by artist: UNDER GRAPH
  in album: THEME OF OSAKA BLUTEON
    type: MusicAlbum
    date published: 2024-10-09
  genre: j-pop
  isrc code: JPZ922407324
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-19T00:52:17+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x9b817fb5bbdb3090d052fcc537d69742824bba4338720569d0621b7b827f56b5
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 958690
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/958690
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPZ922407324
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-19T07:14:39Z
  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 0x9b817fb5bbdb3090d052fcc537d69742824bba4338720569d0621b7b827f56b5. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/JPZ922407324.
    date published: 2026-07-19T07:14:39Z
  audio: THEME OF OSAKA BLUTEON
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 166.052
    additional property: Musical Key
      type: PropertyValue
      value: 0
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 1
    additional property: Time Signature
      type: PropertyValue
      value: 4
    additional property: Danceability
      type: PropertyValue
      value: 0.348
    additional property: Energy
      type: PropertyValue
      value: 0.97
    additional property: Speechiness
      type: PropertyValue
      value: 0.076
    additional property: Acousticness
      type: PropertyValue
      value: 0
    additional property: Instrumentalness
      type: PropertyValue
      value: 0.039
    additional property: Liveness
      type: PropertyValue
      value: 0.193
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.037
    additional property: Loudness (dB)
      type: PropertyValue
      value: -4.532
    additional property: Key Name
      type: PropertyValue
      value: C
    additional property: Mode Name
      type: PropertyValue
      value: Major

THEME OF OSAKA BLUTEON
type: MusicAlbum
date published: 2024-10-09

明日も晴レ！
type: MusicAlbum
date published: 2025-08-01

Ashita mo Hare!
type: MusicAlbum
date published: 2025-08-01

風を呼べ
type: MusicRecording
duration: PT3M47S
duration ms: 227000
explicit: false
by artist: UNDER GRAPH
in album: 弱虫ペダル テーマソングアルバム
  type: MusicAlbum
  date published: 2015-10-14
isrc code: JPZ921313711
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-20T19:07:07+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xd3dde4693ed87e43a1838cfc88355609a609f2281f0507ba140a5b481fc37ed3
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 956302
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/956302
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPZ921313711
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-02T03:30:09Z
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 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 0xd3dde4693ed87e43a1838cfc88355609a609f2281f0507ba140a5b481fc37ed3. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/JPZ921313711.
  date published: 2026-07-02T03:30:09Z
audio: 風を呼べ
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 179.377
  additional property: Musical Key
    type: PropertyValue
    value: 0
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.38
  additional property: Energy
    type: PropertyValue
    value: 0.927
  additional property: Speechiness
    type: PropertyValue
    value: 0.06
  additional property: Acousticness
    type: PropertyValue
    value: 0.009
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.346
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.83
  additional property: Loudness (dB)
    type: PropertyValue
    value: -9.662
  additional property: Key Name
    type: PropertyValue
    value: C
  additional property: Mode Name
    type: PropertyValue
    value: Major