Tsuzuko Sugawara
type: MusicGroup
genre: enka
genre: kayokyoku
popularity: 12
followers: 1222
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x9dc2b7c40f066c2dd59779f1bd7c7487387deff9f2000d9cb1838c7fd748e9b0
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953791
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953791
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/db9d18ce-5507-457c-b33f-90b6db5cd0e9.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/db9d18ce-5507-457c-b33f-90b6db5cd0e9.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/db9d18ce-5507-457c-b33f-90b6db5cd0e9
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-15T13:40:30Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x9dc2b7c40f066c2dd59779f1bd7c7487387deff9f2000d9cb1838c7fd748e9b0","name":"Tsuzuko Sugawara","registered_at":"2026-06-15T03:43:14Z","symbol":"NIM0671317","token_address":"0x8dfb43c981e42ea3a21027a5465b98df283c2e46","type":"artist","uuid":"db9d18ce-5507-457c-b33f-90b6db5cd0e9"}
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 0x9dc2b7c40f066c2dd59779f1bd7c7487387deff9f2000d9cb1838c7fd748e9b0. Chain 2 (Bitcoin): anchored in block 953791 (2026-06-15T13:40:30Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/db9d18ce-5507-457c-b33f-90b6db5cd0e9.json and https://artists.proofprofile.net/proofs/artist/db9d18ce-5507-457c-b33f-90b6db5cd0e9.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-15T13:40:30Z
  text: {"copyright_id":"0x9dc2b7c40f066c2dd59779f1bd7c7487387deff9f2000d9cb1838c7fd748e9b0","name":"Tsuzuko Sugawara","registered_at":"2026-06-15T03:43:14Z","symbol":"NIM0671317","token_address":"0x8dfb43c981e42ea3a21027a5465b98df283c2e46","type":"artist","uuid":"db9d18ce-5507-457c-b33f-90b6db5cd0e9"}
album: 菅原都々子70周年記念全曲集
  type: MusicAlbum
  date published: 2006-09-27
  track: 江の島悲歌(エレジー)
    type: MusicRecording
    duration: PT3M38S
    duration ms: 218586
    explicit: false
    by artist: Tsuzuko Sugawara
    in album: 菅原都々子70周年記念全曲集
      type: MusicAlbum
      date published: 2006-09-27
    genre: enka
    genre: kayokyoku
    isrc code: JPTE06519280
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-21T20:58:35+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xe182703ecbde8cd838ff48e7d260786fec38bef4a11e56e409a31bd7d372e8b2
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 959058
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/959058
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPTE06519280
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-21T21:09:36Z
    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 0xe182703ecbde8cd838ff48e7d260786fec38bef4a11e56e409a31bd7d372e8b2. Chain 2 (Bitcoin): anchored in block 959058 (2026-07-21T21:09:36Z), 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/JPTE06519280.
      date published: 2026-07-21T21:09:36Z
    audio: 江の島悲歌(エレジー)
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 104.733
      additional property: Musical Key
        type: PropertyValue
        value: 0
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 3
      additional property: Danceability
        type: PropertyValue
        value: 0.359
      additional property: Energy
        type: PropertyValue
        value: 0.407
      additional property: Speechiness
        type: PropertyValue
        value: 0.047
      additional property: Acousticness
        type: PropertyValue
        value: 0.969
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.001
      additional property: Liveness
        type: PropertyValue
        value: 0.12
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.23
      additional property: Loudness (dB)
        type: PropertyValue
        value: -9.483
      additional property: Key Name
        type: PropertyValue
        value: C
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: 菅原都々子 ゴールデン★ベスト
  type: MusicAlbum
  date published: 2011-04-06
album: 菅原都々子全集［1］ －江の島悲歌－
  type: MusicAlbum
  date published: 2011-09-01
album: 菅原都々子全集［6］ －北の宿から－
  type: MusicAlbum
  date published: 2011-09-01
album: 菅原都々子全集［4］ －連絡船の唄－
  type: MusicAlbum
  date published: 2011-09-01
album: 菅原都々子全集［5］ －愛燦燦－
  type: MusicAlbum
  date published: 2011-09-01
album: 菅原都々子全集［2］ －月がとっても青いから－
  type: MusicAlbum
  date published: 2011-09-01
album: 菅原都々子全集［3］ －北上夜曲－
  type: MusicAlbum
  date published: 2011-09-01
album: スター☆デラックス 菅原都々子
  type: MusicAlbum
  date published: 2012-12-12
album: Tsuki ga Tottemo Aoi Kara
  type: MusicAlbum
  date published: 2015-03-09
  track: Tsuki ga Tottemo Aoi Kara
    type: MusicRecording
    duration: PT2M48S
    duration ms: 168908
    explicit: false
    by artist: Tsuzuko Sugawara
    in album: Tsuki ga Tottemo Aoi Kara
      type: MusicAlbum
      date published: 2015-03-09
    genre: enka
    genre: kayokyoku
    isrc code: QM6P41466684
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-18T15:14:04+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xac1594a4da0f4bc19ca581c1a599a6f2d2804b4d86db74b377b21af480cbf077
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958568
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958568
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM6P41466684
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-18T15:23:47Z
    additional property: OTSVerifyInstructions
      type: PropertyValue
      value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp 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 0xac1594a4da0f4bc19ca581c1a599a6f2d2804b4d86db74b377b21af480cbf077. Chain 2 (Bitcoin): anchored in block 958568 (2026-07-18T15:23:47Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM6P41466684.
      date published: 2026-07-18T15:23:47Z
    audio: Tsuki ga Tottemo Aoi Kara
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 117.197
      additional property: Musical Key
      additional property: Mode (Major/Minor)
      additional property: Time Signature
      additional property: Danceability
      additional property: Energy
      additional property: Speechiness
      additional property: Acousticness
      additional property: Instrumentalness
      additional property: Liveness
      additional property: Valence (Positivity)
      additional property: Loudness (dB)
      additional property: Key Name
      additional property: Mode Name
album: 菅原都々子ゴールデンソングス
album: 懐かしのSP時代「菅原都々子全曲集」

Musical Key
type: PropertyValue
value: 0

Mode (Major/Minor)
type: PropertyValue
value: 1

Time Signature
type: PropertyValue
value: 4

Danceability
type: PropertyValue
value: 0.726

Energy
type: PropertyValue
value: 0.245

Speechiness
type: PropertyValue
value: 0.051

Acousticness
type: PropertyValue
value: 0.887

Instrumentalness
type: PropertyValue
value: 0

Liveness
type: PropertyValue
value: 0.203

Valence (Positivity)
type: PropertyValue
value: 0.853

Loudness (dB)
type: PropertyValue
value: -11.22

Key Name
type: PropertyValue
value: C

Mode Name
type: PropertyValue
value: Major

菅原都々子ゴールデンソングス
type: MusicAlbum
date published: 2016-05-18

懐かしのSP時代「菅原都々子全曲集」
type: MusicAlbum
date published: 2020-08-12