Kasarinchu
type: MusicGroup
popularity: 17
followers: 2729
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x0bc4695f300a6acc167f826f7934d7557cda0a289df127d77ac8a87a73325ddf
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953701
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953701
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/7648509b-bd8d-4cd7-9eda-dae03c8747f6.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/7648509b-bd8d-4cd7-9eda-dae03c8747f6.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/7648509b-bd8d-4cd7-9eda-dae03c8747f6
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-14T22:16:40Z
additional property: OTSCanonicalRecord
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 0x0bc4695f300a6acc167f826f7934d7557cda0a289df127d77ac8a87a73325ddf. Chain 2 (Bitcoin): anchored in block 953742 (2026-06-15T04:47:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/7648509b-bd8d-4cd7-9eda-dae03c8747f6.json and https://artists.proofprofile.net/proofs/artist/7648509b-bd8d-4cd7-9eda-dae03c8747f6.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-15T04:47:56Z
album: あなたの笑顔
  type: MusicAlbum
  date published: 2010
album: 感謝
  type: MusicAlbum
  date published: 2010-07-28
album: 感謝
  type: MusicAlbum
  date published: 2010-07-28
album: あなたの笑顔
  type: MusicAlbum
  date published: 2010-12-08
album: やめられない とまれない/High High High
  type: MusicAlbum
  date published: 2011-07-27
album: やめられない とまれない/High High High
  type: MusicAlbum
  date published: 2011-07-27
album: やめられない とまれない Live Version
  type: MusicAlbum
  date published: 2011-11-09
album: やめられない とまれない Christmas Version
  type: MusicAlbum
  date published: 2011-12-07
album: やめられない とまれない STUDIO APARTMENT Remix
  type: MusicAlbum
  date published: 2012-01-11
album: やめられない とまれない STUDIO APARTMENT Remix
  type: MusicAlbum
  date published: 2012-01-11
album: 瞳をとじれば
  type: MusicAlbum
  date published: 2012-07-25
album: この街に生まれて（カサリンチュver.）
  type: MusicAlbum
  date published: 2012-08-08
album: ラブライバル
  type: MusicAlbum
  date published: 2012-08-22
album: カサリズム
  type: MusicAlbum
  date published: 2012-09-05
  track: やめられない とまれない
    type: MusicRecording
    duration: PT4M20S
    duration ms: 260560
    explicit: false
    by artist: Kasarinchu
    in album: カサリズム
      type: MusicAlbum
      date published: 2012-09-05
    isrc code: JPES01101281
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-21T08:35:08+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x9598afe6d0ce72b852c056f4d6a306c215f30212aeaefb53caee51b219eeb52a
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958987
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958987
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPES01101281
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-21T11:38:18Z
    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 0x9598afe6d0ce72b852c056f4d6a306c215f30212aeaefb53caee51b219eeb52a. Chain 2 (Bitcoin): anchored in block 958987 (2026-07-21T11:38:18Z), 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/JPES01101281.
      date published: 2026-07-21T11:38:18Z
    audio: やめられない とまれない
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 125.017
      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: 0.794
      additional property: Energy
        type: PropertyValue
        value: 0.776
      additional property: Speechiness
        type: PropertyValue
        value: 0.048
      additional property: Acousticness
        type: PropertyValue
        value: 0.043
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.005
      additional property: Liveness
        type: PropertyValue
        value: 0.079
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.871
      additional property: Loudness (dB)
        type: PropertyValue
        value: -6.331
      additional property: Key Name
        type: PropertyValue
        value: A
      additional property: Mode Name
        type: PropertyValue
        value: Major
  track: 感謝
    type: MusicRecording
    duration: PT4M4S
    duration ms: 244093
    explicit: false
    by artist: Kasarinchu
    in album: カサリズム
      type: MusicAlbum
      date published: 2012-09-05
    isrc code: JPES01001961
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-18T21:42:17+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x2a53cea25003bffcfa311f184e630c6e3fc33d99de27cc8a0f122541651479bf
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958617
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958617
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPES01001961
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-18T22:07:13Z
    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 0x2a53cea25003bffcfa311f184e630c6e3fc33d99de27cc8a0f122541651479bf. Chain 2 (Bitcoin): anchored in block 958617 (2026-07-18T22:07:13Z), 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/JPES01001961.
      date published: 2026-07-18T22:07:13Z
    audio: 感謝
  track: High High High
  track: あなたの笑顔
album: あるがままに
album: メインテーマ：追伸
album: カサリンチュ Select songs from「すーちゃん まいちゃん さわ子さん」
album: 夏が終わる前に
album: New World
album: カサリズム2
album: ハッピーエンド/タイムカプセル
album: 故郷（ふるさと）
album: さあいこう
album: やまおり たにおり
album: 風
album: たいせつなひと
album: あと一歩
album: カサリズム３
album: 待つ、うらら
album: ハブアナイスデイ
album: カサリズム4
album: Kasarhythm4
track: 春なのに

春なのに
type: MusicRecording
duration: PT3M33S
duration ms: 213733
explicit: false
by artist: Kousuke Atari
by artist: Kasarinchu
in album: ベストカバーズ〜もっと日本。〜
  type: MusicAlbum
  date published: 2013-07-31
isrc code: JPES01100161
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-26T20:32:36+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x1f9b0be27c1aad056c948b36914d1037c1eeda1574d20c0e46e193fda65b2023
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 956304
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/956304
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPES01100161
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-02T03:55:08+00:00
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
additional property: ProofProfileEvidenceStatus
  type: PropertyValue
  value: verified-cc-db-prod
additional property: TokenDeploymentConfirmed
  type: PropertyValue
  value: true
additional property: ContentHash
additional property: BitcoinBlock
  type: PropertyValue
  value: 956304
additional property: BitcoinTime
  type: PropertyValue
  value: 2026-07-02T03:55:08+00:00
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f9b0be27c1aad056c948b36914d1037c1eeda1574d20c0e46e193fda65b2023. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/JPES01100161.
  date published: 2026-07-02T05:09:12Z
audio: 春なのに
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 147.91
  additional property: Musical Key
    type: PropertyValue
    value: 2
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 0
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.556
  additional property: Energy
    type: PropertyValue
    value: 0.468
  additional property: Speechiness
    type: PropertyValue
    value: 0.036
  additional property: Acousticness
    type: PropertyValue
    value: 0.803
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.217
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.254
  additional property: Loudness (dB)
    type: PropertyValue
    value: -11.396
  additional property: Key Name
    type: PropertyValue
    value: D
  additional property: Mode Name
    type: PropertyValue
    value: Minor

感謝
type: AudioObject
additional property: Tempo (BPM)
  type: PropertyValue
  value: 94.977
additional property: Musical Key
  type: PropertyValue
  value: 4
additional property: Mode (Major/Minor)
  type: PropertyValue
  value: 1
additional property: Time Signature
  type: PropertyValue
  value: 4
additional property: Danceability
  type: PropertyValue
  value: 0.79
additional property: Energy
  type: PropertyValue
  value: 0.582
additional property: Speechiness
  type: PropertyValue
  value: 0.056
additional property: Acousticness
  type: PropertyValue
  value: 0.105
additional property: Instrumentalness
  type: PropertyValue
  value: 0
additional property: Liveness
  type: PropertyValue
  value: 0.092
additional property: Valence (Positivity)
  type: PropertyValue
  value: 0.369
additional property: Loudness (dB)
  type: PropertyValue
  value: -6.713
additional property: Key Name
  type: PropertyValue
  value: E
additional property: Mode Name
  type: PropertyValue
  value: Major

High High High
type: MusicRecording
duration: PT4M40S
duration ms: 280493
explicit: false
by artist: Kasarinchu
in album: カサリズム
  type: MusicAlbum
  date published: 2012-09-05
isrc code: JPES01101282
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-02T23:02:24+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xe937fd0458383c244aa5980236b207103c14b2d0a9a21ccd9f02095aa918975e
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 956422
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/956422
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPES01101282
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-03T01:01:38Z
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
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe937fd0458383c244aa5980236b207103c14b2d0a9a21ccd9f02095aa918975e. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/JPES01101282.
  date published: 2026-07-03T01:01:38Z
audio: High High High
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 183.8
  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: 0.545
  additional property: Energy
    type: PropertyValue
    value: 0.648
  additional property: Speechiness
    type: PropertyValue
    value: 0.058
  additional property: Acousticness
    type: PropertyValue
    value: 0.15
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.073
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.769
  additional property: Loudness (dB)
    type: PropertyValue
    value: -5.664
  additional property: Key Name
    type: PropertyValue
    value: F
  additional property: Mode Name
    type: PropertyValue
    value: Major

あなたの笑顔
type: MusicRecording
duration: PT5M32S
duration ms: 332586
explicit: false
by artist: Kasarinchu
in album: カサリズム
  type: MusicAlbum
  date published: 2012-09-05
isrc code: JPES01003261
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-19T07:50:44+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x3be8dc2a18415dda3fc80867295c0f9390361ad0b85e4dda5f3ee97ff407cfc4
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 958700
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/958700
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPES01003261
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-19T08:09:50Z
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 0x3be8dc2a18415dda3fc80867295c0f9390361ad0b85e4dda5f3ee97ff407cfc4. Chain 2 (Bitcoin): anchored in block 958700 (2026-07-19T08:09:50Z), 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/JPES01003261.
  date published: 2026-07-19T08:09:50Z
audio: あなたの笑顔
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 88.003
  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: 0.665
  additional property: Energy
    type: PropertyValue
    value: 0.529
  additional property: Speechiness
    type: PropertyValue
    value: 0.032
  additional property: Acousticness
    type: PropertyValue
    value: 0.076
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.278
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.567
  additional property: Loudness (dB)
    type: PropertyValue
    value: -6.454
  additional property: Key Name
    type: PropertyValue
    value: C#
  additional property: Mode Name
    type: PropertyValue
    value: Major

カサリズム
type: MusicAlbum
date published: 2012-09-05

あるがままに
type: MusicAlbum
date published: 2013-02-20

メインテーマ：追伸
type: MusicAlbum
date published: 2013-02-27

カサリンチュ Select songs from「すーちゃん まいちゃん さわ子さん」
type: MusicAlbum
date published: 2013-02-27
track: 白い雲のように
  type: MusicRecording
  duration: PT4M0S
  duration ms: 240880
  explicit: false
  by artist: Kasarinchu
  in album: カサリンチュ Select songs from「すーちゃん まいちゃん さわ子さん」
    type: MusicAlbum
    date published: 2013-02-27
  isrc code: JPBV01320065
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-05T02:03:56+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0xa25e103d656631a4f4f5052d592bd88f2c2a7c971a9a2c326402a01b68dab627
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 956772
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/956772
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPBV01320065
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-05T10:01:46Z
  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
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    date published: 2026-07-05T10:01:46Z
  audio: 白い雲のように
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カサリンチュ Select songs from「すーちゃん まいちゃん さわ子さん」
type: MusicAlbum
date published: 2013-02-27

夏が終わる前に
type: MusicAlbum
date published: 2013-08-07

夏が終わる前に
type: MusicAlbum
date published: 2013-08-07

New World
type: MusicAlbum
date published: 2013-11-13

New World
type: MusicAlbum
date published: 2013-11-13

カサリズム2
type: MusicAlbum
date published: 2013-12-04

カサリズム2
type: MusicAlbum
date published: 2013-12-04

ハッピーエンド/タイムカプセル
type: MusicAlbum
date published: 2014-07-09

故郷（ふるさと）
type: MusicAlbum
date published: 2015-04-29

さあいこう
type: MusicAlbum
date published: 2015-08-12

やまおり たにおり
type: MusicAlbum
date published: 2015-11-19

風
type: MusicAlbum
date published: 2016-02-10

たいせつなひと
type: MusicAlbum
date published: 2016-02-24

あと一歩
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date published: 2016-04-21

カサリズム３
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date published: 2016-05-18
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  audio: あと一歩
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カサリズム３
type: MusicAlbum
date published: 2016-05-18

あと一歩
type: MusicAlbum
date published: 2016-10-25

あと一歩
type: MusicAlbum
date published: 2016-10-26

待つ、うらら
type: MusicAlbum
date published: 2017-12-20

ハブアナイスデイ
type: MusicAlbum
date published: 2018-07-18

カサリズム4
type: MusicAlbum
date published: 2018-10-10

カサリズム4
type: MusicAlbum
date published: 2018-10-10

Kasarhythm4
type: MusicAlbum
date published: 2018-10-17