Swing-O
type: MusicGroup
genre: private school piano
genre: shibuya-kei
popularity: 14
followers: 385
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
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additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
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additional property: OTSProofURL
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additional property: OTSTimestamp
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  value: 2026-06-14T15:20:52Z
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 0x56d272eb4ef1eda3a2d85c9cf2505c23605d7217e7437009d9357124a6953780. Chain 2 (Bitcoin): anchored in block 953648 (2026-06-14T15:20:52Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/476cda46-5c37-4897-8531-a445954d14d3.json and https://artists.proofprofile.net/proofs/artist/476cda46-5c37-4897-8531-a445954d14d3.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-14T15:20:52Z
album: 遊女ASOBI
  type: MusicAlbum
  date published: 2006-10-04
album: SOUL PIANO
  type: MusicAlbum
  date published: 2019-06-26
album: SOUL PIANO
  type: MusicAlbum
  date published: 2019-06-26
  track: Morning Walk ～朝の散歩～
    type: MusicRecording
    duration: PT3M18S
    duration ms: 198813
    explicit: false
    by artist: Swing-O
    in album: SOUL PIANO
      type: MusicAlbum
      date published: 2019-06-26
    genre: private school piano
    genre: shibuya-kei
    isrc code: JPU801900043
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
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      type: PropertyValue
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      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xcfa99e5082f619d78e1232700a3ff54003cfcb04d80ecd14d4023539f43d9145
    additional property: OTSHash
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    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPU801900043
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-19T05:38:28Z
    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 0xcfa99e5082f619d78e1232700a3ff54003cfcb04d80ecd14d4023539f43d9145. Chain 2 (Bitcoin): anchored in block 958673 (2026-07-19T05:38:28Z), 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/JPU801900043.
      date published: 2026-07-19T05:38:28Z
    audio: Morning Walk ～朝の散歩～
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 98.807
      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: 0.465
      additional property: Energy
        type: PropertyValue
        value: 0.243
      additional property: Speechiness
        type: PropertyValue
        value: 0.037
      additional property: Acousticness
        type: PropertyValue
        value: 0.975
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.926
      additional property: Liveness
        type: PropertyValue
        value: 0.114
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.386
      additional property: Loudness (dB)
        type: PropertyValue
        value: -14.966
      additional property: Key Name
        type: PropertyValue
        value: C
      additional property: Mode Name
        type: PropertyValue
        value: Major
  track: Trip
    type: MusicRecording
    duration: PT3M37S
    duration ms: 217320
    explicit: false
    by artist: Swing-O
    in album: SOUL PIANO
      type: MusicAlbum
      date published: 2019-06-26
    genre: private school piano
    genre: shibuya-kei
    isrc code: JPU801900045
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
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    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPU801900045
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-19T03:36:41Z
    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
    subject of: OpenTimestamps Proof of Existence
      type: DigitalDocument
      encoding format: application/vnd.opentimestamps.ots
      description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2bc34c781ee6b3104d82806a2dc2bd5444fa2ff35d417b84c4fc0373feabeb4d. Chain 2 (Bitcoin): anchored in block 958650 (2026-07-19T03:36:41Z), 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/JPU801900045.
      date published: 2026-07-19T03:36:41Z
    audio: Trip
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 141.142
      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: 0.385
      additional property: Energy
        type: PropertyValue
        value: 0.192
      additional property: Speechiness
        type: PropertyValue
        value: 0.038
      additional property: Acousticness
        type: PropertyValue
        value: 0.992
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.916
      additional property: Liveness
      additional property: Valence (Positivity)
      additional property: Loudness (dB)
      additional property: Key Name
      additional property: Mode Name
  track: Super Dream

Liveness
type: PropertyValue
value: 0.113

Valence (Positivity)
type: PropertyValue
value: 0.161

Loudness (dB)
type: PropertyValue
value: -17.708

Key Name
type: PropertyValue
value: B

Mode Name
type: PropertyValue
value: Minor

Super Dream
type: MusicRecording
duration: PT3M52S
duration ms: 232826
explicit: false
by artist: Swing-O
in album: SOUL PIANO
  type: MusicAlbum
  date published: 2019-06-26
genre: private school piano
genre: shibuya-kei
isrc code: JPU801900054
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
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  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x504fb7b2b6f410ff7345907587e34d7507ecbbd2bc7bc1042df2e18b9ed66824
additional property: OTSHash
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/JPU801900054
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-06T01:25:57Z
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 0x504fb7b2b6f410ff7345907587e34d7507ecbbd2bc7bc1042df2e18b9ed66824. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/JPU801900054.
  date published: 2026-07-06T01:25:57Z
audio: Super Dream
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 128.478
  additional property: Musical Key
    type: PropertyValue
    value: 3
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 0
  additional property: Time Signature
    type: PropertyValue
    value: 3
  additional property: Danceability
    type: PropertyValue
    value: 0.475
  additional property: Energy
    type: PropertyValue
    value: 0.223
  additional property: Speechiness
    type: PropertyValue
    value: 0.041
  additional property: Acousticness
    type: PropertyValue
    value: 0.994
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.942
  additional property: Liveness
    type: PropertyValue
    value: 0.139
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.163
  additional property: Loudness (dB)
    type: PropertyValue
    value: -17.194
  additional property: Key Name
    type: PropertyValue
    value: Eb
  additional property: Mode Name
    type: PropertyValue
    value: Minor