沖澤のどか
type: MusicGroup
popularity: 11
followers: 233
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
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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/953768
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/c17ae53c-28a9-4891-b5bf-a01725a1c975.ots
additional property: OTSRecordURL
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  value: https://artists.proofprofile.net/proofs/artist/c17ae53c-28a9-4891-b5bf-a01725a1c975.json
additional property: OTSVerificationAPI
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additional property: OTSTimestamp
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additional property: OTSCanonicalRecord
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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
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x411ed8943f3c3b75b4bb1e13e9a969bb2ddba086bd4f8e7ea564a6ee64bcb292. Chain 2 (Bitcoin): anchored in block 953768 (2026-06-15T09:30:06Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/c17ae53c-28a9-4891-b5bf-a01725a1c975.json and https://artists.proofprofile.net/proofs/artist/c17ae53c-28a9-4891-b5bf-a01725a1c975.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-15T09:30:06Z
  text: {"copyright_id":"0x411ed8943f3c3b75b4bb1e13e9a969bb2ddba086bd4f8e7ea564a6ee64bcb292","name":"沖澤のどか","registered_at":"2026-06-15T00:48:47Z","symbol":"NIM0629643","token_address":"0x580961926b396b9a4bf7fc37b50b7c17b0ff2135","type":"artist","uuid":"c17ae53c-28a9-4891-b5bf-a01725a1c975"}
track: Symphony No. 1 in C Minor, Op. 68: I. Un poco sostenuto – Allegro - Live at Kissei Bunka Hall, Matsumoto / 2024
  type: MusicRecording
  duration: PT13M11S
  duration ms: 791586
  explicit: false
  by artist: Johannes Brahms
  by artist: Saito Kinen Orchestra
  by artist: 沖澤のどか
  in album: Brahms: Symphonies Nos. 1 & 2 / Strauss: Don Juan (Live at Seiji Ozawa Matsumoto Festival / 2024)
    type: MusicAlbum
    date published: 2024-12-18
  genre: classical
  genre: german-romanticism
  genre: late-romantic-era
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  additional property: CopyrightID
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  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPPO02405526
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-29T19:35:34Z
  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 0x442fcfebe9c04e5e2d6fd9f2c276db8eb882734231c60f630762dd6b917911d6. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/JPPO02405526.
    date published: 2026-07-29T19:35:34Z
  audio: Symphony No. 1 in C Minor, Op. 68: I. Un poco sostenuto – Allegro - Live at Kissei Bunka Hall, Matsumoto / 2024
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    additional property: Danceability
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track: Symphony No. 1 in C Minor, Op. 68: II. Andante sostenuto - Live at Kissei Bunka Hall, Matsumoto / 2024
  type: MusicRecording
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  by artist: Saito Kinen Orchestra
  by artist: 沖澤のどか
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    type: MusicAlbum
    date published: 2024-12-18
  genre: classical
  genre: german-romanticism
  genre: late-romantic-era
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  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
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    value: https://blockstream.info/api/block-height/960268
  additional property: OTSVerificationAPI
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    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPPO02405527
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-30T14:53:07Z
  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 0xae5c9aff2ce15a4c5eba9d7dc6e09e3a8b092ae254d53c0722811213c4ebb9a8. Chain 2 (Bitcoin): anchored in block 960268 (2026-07-30T14:53:07Z), 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/JPPO02405527.
    date published: 2026-07-30T14:53:07Z
  audio: Symphony No. 1 in C Minor, Op. 68: II. Andante sostenuto - Live at Kissei Bunka Hall, Matsumoto / 2024
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    additional property: Tempo (BPM)
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    additional property: Mode (Major/Minor)
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    additional property: Time Signature
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    additional property: Danceability
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    additional property: Liveness
    additional property: Valence (Positivity)
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track: Symphony No. 1 in C Minor, Op. 68: III. Un poco allegretto e grazioso - Live at Kissei Bunka Hall, Matsumoto / 2024
track: Don Juan, Op. 20 - Live at Kissei Bunka Hall, Matsumoto / 2024
track: Symphony No. 2 in D Major, Op. 73: I. Allegro non troppo - Live at Kissei Bunka Hall, Matsumoto / 2024
track: Symphony No. 2 in D Major, Op. 73: II. Adagio non troppo - Live at Kissei Bunka Hall, Matsumoto / 2024
track: Symphony No. 2 in D Major, Op. 73: III. Allegretto grazioso (quasi andantino) - Live at Kissei Bunka Hall, Matsumoto / 2024
track: Symphony No. 2 in D Major, Op. 73: IV. Allegro con spirito - Live at Kissei Bunka Hall, Matsumoto / 2024

Liveness
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value: 0.099

Valence (Positivity)
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Loudness (dB)
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Key Name
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Mode Name
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Symphony No. 1 in C Minor, Op. 68: III. Un poco allegretto e grazioso - Live at Kissei Bunka Hall, Matsumoto / 2024
type: MusicRecording
duration: PT4M45S
duration ms: 285746
explicit: false
by artist: Johannes Brahms
by artist: Saito Kinen Orchestra
by artist: 沖澤のどか
in album: Brahms: Symphonies Nos. 1 & 2 / Strauss: Don Juan (Live at Seiji Ozawa Matsumoto Festival / 2024)
  type: MusicAlbum
  date published: 2024-12-18
genre: classical
genre: german-romanticism
genre: late-romantic-era
isrc code: JPPO02405528
additional property: CopyrightID
additional property: CopyrightStatus
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additional property: CopyrightRegisteredAt
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additional property: CopyrightChainExplorerURL
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additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
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additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPPO02405528
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-31T04:14:58Z
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 0xe855b7434c10a36b4157e7b7a077608d0b5d0885dd624ce534c34ec1ba11d68d. Chain 2 (Bitcoin): anchored in block 960344 (2026-07-31T04:14:58Z), 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/JPPO02405528.
  date published: 2026-07-31T04:14:58Z
audio: Symphony No. 1 in C Minor, Op. 68: III. Un poco allegretto e grazioso - Live at Kissei Bunka Hall, Matsumoto / 2024
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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
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  additional property: Danceability
    type: PropertyValue
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  additional property: Energy
    type: PropertyValue
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  additional property: Speechiness
    type: PropertyValue
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  additional property: Acousticness
    type: PropertyValue
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  additional property: Instrumentalness
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  additional property: Liveness
    type: PropertyValue
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  additional property: Valence (Positivity)
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Don Juan, Op. 20 - Live at Kissei Bunka Hall, Matsumoto / 2024
type: MusicRecording
duration: PT18M51S
duration ms: 1131400
explicit: false
by artist: Richard Strauss
by artist: Saito Kinen Orchestra
by artist: 沖澤のどか
in album: Brahms: Symphonies Nos. 1 & 2 / Strauss: Don Juan (Live at Seiji Ozawa Matsumoto Festival / 2024)
  type: MusicAlbum
  date published: 2024-12-18
genre: classical
genre: opera
genre: orchestra
isrc code: JPPO02405530
additional property: CopyrightID
additional property: CopyrightStatus
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  value: registered
additional property: CopyrightRegisteredAt
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  value: 2026-07-31T01:52:39+00:00
additional property: CopyrightChainExplorerURL
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  value: https://explorer.copyrightchains.com/tx/0x9f2da7253e893e6a276f5d1b7fb792c6ed5e9a4c4103046af827ccbed73bb8f5
additional property: OTSHash
additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
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  value: https://blockstream.info/api/block-height/960334
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPPO02405530
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-31T02:19:15Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp 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 0x9f2da7253e893e6a276f5d1b7fb792c6ed5e9a4c4103046af827ccbed73bb8f5. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPPO02405530.
  date published: 2026-07-31T02:19:15Z
audio: Don Juan, Op. 20 - Live at Kissei Bunka Hall, Matsumoto / 2024
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Symphony No. 2 in D Major, Op. 73: I. Allegro non troppo - Live at Kissei Bunka Hall, Matsumoto / 2024
type: MusicRecording
duration: PT15M12S
duration ms: 912306
explicit: false
by artist: Johannes Brahms
by artist: Saito Kinen Orchestra
by artist: 沖澤のどか
in album: Brahms: Symphonies Nos. 1 & 2 / Strauss: Don Juan (Live at Seiji Ozawa Matsumoto Festival / 2024)
  type: MusicAlbum
  date published: 2024-12-18
genre: classical
genre: german-romanticism
genre: late-romantic-era
isrc code: JPPO02405531
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-31T11:36:43+00:00
additional property: CopyrightChainExplorerURL
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additional property: OTSHash
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/JPPO02405531
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-31T13:04:34Z
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 0xecf12d50ad24578273422d44eaecc4f77fc38ddfac08cd553272639fcfe821e3. Chain 2 (Bitcoin): anchored in block 960403 (2026-07-31T13:04:34Z), 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/JPPO02405531.
  date published: 2026-07-31T13:04:34Z
audio: Symphony No. 2 in D Major, Op. 73: I. Allegro non troppo - Live at Kissei Bunka Hall, Matsumoto / 2024
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Symphony No. 2 in D Major, Op. 73: II. Adagio non troppo - Live at Kissei Bunka Hall, Matsumoto / 2024
type: MusicRecording
duration: PT9M13S
duration ms: 553093
explicit: false
by artist: Johannes Brahms
by artist: Saito Kinen Orchestra
by artist: 沖澤のどか
in album: Brahms: Symphonies Nos. 1 & 2 / Strauss: Don Juan (Live at Seiji Ozawa Matsumoto Festival / 2024)
  type: MusicAlbum
  date published: 2024-12-18
genre: classical
genre: german-romanticism
genre: late-romantic-era
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additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
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additional property: OTSVerificationAPI
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additional property: OTSTimestamp
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additional property: OTSVerifyInstructions
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  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
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3cd2134503f539042d1261b62eaffbec592e2056e58b7775ba2391d475ab61d. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/JPPO02405532.
  date published: 2026-07-08T03:20:19Z
audio: Symphony No. 2 in D Major, Op. 73: II. Adagio non troppo - Live at Kissei Bunka Hall, Matsumoto / 2024
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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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Symphony No. 2 in D Major, Op. 73: III. Allegretto grazioso (quasi andantino) - Live at Kissei Bunka Hall, Matsumoto / 2024
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duration: PT5M13S
duration ms: 313813
explicit: false
by artist: Johannes Brahms
by artist: Saito Kinen Orchestra
by artist: 沖澤のどか
in album: Brahms: Symphonies Nos. 1 & 2 / Strauss: Don Juan (Live at Seiji Ozawa Matsumoto Festival / 2024)
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  date published: 2024-12-18
genre: classical
genre: german-romanticism
genre: late-romantic-era
isrc code: JPPO02405533
additional property: CopyrightID
additional property: CopyrightStatus
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additional property: CopyrightRegisteredAt
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additional property: CopyrightChainExplorerURL
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additional property: OTSVerificationAPI
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additional property: OTSTimestamp
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additional property: OTSVerifyInstructions
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  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
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd59136cd40e576e9e231e2a8cb5212dd09affc33b0d8316b53aad7c2de61ab12. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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/JPPO02405533.
  date published: 2026-07-31T12:24:41Z
audio: Symphony No. 2 in D Major, Op. 73: III. Allegretto grazioso (quasi andantino) - Live at Kissei Bunka Hall, Matsumoto / 2024
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Symphony No. 2 in D Major, Op. 73: IV. Allegro con spirito - Live at Kissei Bunka Hall, Matsumoto / 2024
type: MusicRecording
duration: PT9M25S
duration ms: 565893
explicit: false
by artist: Johannes Brahms
by artist: Saito Kinen Orchestra
by artist: 沖澤のどか
in album: Brahms: Symphonies Nos. 1 & 2 / Strauss: Don Juan (Live at Seiji Ozawa Matsumoto Festival / 2024)
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  date published: 2024-12-18
genre: classical
genre: german-romanticism
genre: late-romantic-era
isrc code: JPPO02405534
additional property: CopyrightID
additional property: CopyrightStatus
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additional property: CopyrightRegisteredAt
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additional property: CopyrightChainExplorerURL
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additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
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additional property: OTSVerificationAPI
  type: PropertyValue
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additional property: OTSTimestamp
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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 0x90694e50bab58d0de86c65aeecffbbc0d16b41a51873ebba73f529117a4a6cd2. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/JPPO02405534.
  date published: 2026-07-08T03:20:19Z
audio: Symphony No. 2 in D Major, Op. 73: IV. Allegro con spirito - Live at Kissei Bunka Hall, Matsumoto / 2024
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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
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  additional property: Danceability
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  additional property: Acousticness
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  additional property: Instrumentalness
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  additional property: Valence (Positivity)
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