Ayako Takagi
type: MusicGroup
popularity: 16
followers: 951
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x4f2ef28f7aa705cb4adeb7a09e6cf5326913b8112975dc634531aa44eeef9267
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/de7ec8d6-049e-4795-9d80-4b767a421007.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/de7ec8d6-049e-4795-9d80-4b767a421007.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/de7ec8d6-049e-4795-9d80-4b767a421007
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-15T13:40:30Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x4f2ef28f7aa705cb4adeb7a09e6cf5326913b8112975dc634531aa44eeef9267","name":"Ayako Takagi","registered_at":"2026-06-15T04:01:48Z","symbol":"NIM0675744","token_address":"0xe0bb4ca2c3a0fa38472d7d469c113d70c28b873d","type":"artist","uuid":"de7ec8d6-049e-4795-9d80-4b767a421007"}
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 0x4f2ef28f7aa705cb4adeb7a09e6cf5326913b8112975dc634531aa44eeef9267. 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/de7ec8d6-049e-4795-9d80-4b767a421007.json and https://artists.proofprofile.net/proofs/artist/de7ec8d6-049e-4795-9d80-4b767a421007.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-15T13:40:30Z
  text: {"copyright_id":"0x4f2ef28f7aa705cb4adeb7a09e6cf5326913b8112975dc634531aa44eeef9267","name":"Ayako Takagi","registered_at":"2026-06-15T04:01:48Z","symbol":"NIM0675744","token_address":"0xe0bb4ca2c3a0fa38472d7d469c113d70c28b873d","type":"artist","uuid":"de7ec8d6-049e-4795-9d80-4b767a421007"}
album: シシリエンヌ 〜 フルート名曲集
  type: MusicAlbum
  date published: 1999
  track: タイスの瞑想曲
    type: MusicRecording
    duration: PT4M7S
    duration ms: 247760
    explicit: false
    by artist: Ayako Takagi
    in album: シシリエンヌ 〜 フルート名曲集
      type: MusicAlbum
      date published: 1999
    isrc code: JPCO09946380
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-04T08:09:47+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x9a6e5db864a6dbdb4912e69e2bf2b29df6905ac6d7ae3b42c22172e713434a2f
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 956634
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/956634
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPCO09946380
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-04T10:04:33Z
    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 0x9a6e5db864a6dbdb4912e69e2bf2b29df6905ac6d7ae3b42c22172e713434a2f. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/JPCO09946380.
      date published: 2026-07-04T10:04:33Z
    audio: タイスの瞑想曲
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 78.249
      additional property: Musical Key
        type: PropertyValue
        value: 2
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.222
      additional property: Energy
        type: PropertyValue
        value: 0.068
      additional property: Speechiness
        type: PropertyValue
        value: 0.042
      additional property: Acousticness
        type: PropertyValue
        value: 0.994
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.887
      additional property: Liveness
        type: PropertyValue
        value: 0.081
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.048
      additional property: Loudness (dB)
        type: PropertyValue
        value: -21.595
      additional property: Key Name
        type: PropertyValue
        value: D
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: 卒業写真 〜 プレイズ・ユーミン・オン・フルート
  type: MusicAlbum
  date published: 1999
album: ジェントル・ドリームズ 〜20世紀フルート音楽
  type: MusicAlbum
  date published: 2000-07-20
album: 青春の輝き 〜高木綾子プレイズ・カーペンターズ
  type: MusicAlbum
  date published: 2000-07-20
album: 南の想い
  type: MusicAlbum
  date published: 2001-02-21
album: エール・ブルー (青の余白)
  type: MusicAlbum
  date published: 2001-09-21
album: イタリア
  type: MusicAlbum
  date published: 2002-07-20
album: Earth 〜フルート名曲の旅
  type: MusicAlbum
  date published: 2003-10-22
  track: EARTH (アース)
    type: MusicRecording
    duration: PT7M3S
    duration ms: 423240
    explicit: false
    by artist: Ayako Takagi
    in album: Earth 〜フルート名曲の旅
      type: MusicAlbum
      date published: 2003-10-22
    isrc code: JPCO00322970
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-05T12:00:35+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xfdcc6c0a8c7af9206d74b18212f5002f6e49d9ce8e764ae62f4b1fc84b42521b
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 956826
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/956826
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPCO00322970
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-05T19:27:56Z
    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 0xfdcc6c0a8c7af9206d74b18212f5002f6e49d9ce8e764ae62f4b1fc84b42521b. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/JPCO00322970.
      date published: 2026-07-05T19:27:56Z
    audio: EARTH (アース)
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 73.323
      additional property: Musical Key
        type: PropertyValue
        value: 2
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.223
      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: 海へ
album: シランクス〜高木綾子ベスト

Energy
type: PropertyValue
value: 0.148

Speechiness
type: PropertyValue
value: 0.045

Acousticness
type: PropertyValue
value: 0.987

Instrumentalness
type: PropertyValue
value: 0.881

Liveness
type: PropertyValue
value: 0.063

Valence (Positivity)
type: PropertyValue
value: 0.166

Loudness (dB)
type: PropertyValue
value: -18.224

Key Name
type: PropertyValue
value: D

Mode Name
type: PropertyValue
value: Major

海へ
type: MusicAlbum
date published: 2005-06-22

シランクス〜高木綾子ベスト
type: MusicAlbum
date published: 2010-01-20