うずら
type: MusicGroup
genre: vocaloid
popularity: 10
followers: 141
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x21a739ef3ab1b813f84137ff1cb718882c92a4c5cbbd4b8531fafef7730a99f8
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954066
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954066
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/659e9cc2-627b-4e86-96db-ebe6df6c946b.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/659e9cc2-627b-4e86-96db-ebe6df6c946b.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/659e9cc2-627b-4e86-96db-ebe6df6c946b
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T08:11:48Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x21a739ef3ab1b813f84137ff1cb718882c92a4c5cbbd4b8531fafef7730a99f8","name":"うずら","registered_at":"2026-06-17T01:08:48Z","symbol":"NIM1233467","token_address":"0xe5d3714cf51449351f9c4f99f0253a7e4f9db6f8","type":"artist","uuid":"659e9cc2-627b-4e86-96db-ebe6df6c946b"}
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 0x21a739ef3ab1b813f84137ff1cb718882c92a4c5cbbd4b8531fafef7730a99f8. Chain 2 (Bitcoin): anchored in block 954066 (2026-06-17T08:11:48Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/659e9cc2-627b-4e86-96db-ebe6df6c946b.json and https://artists.proofprofile.net/proofs/artist/659e9cc2-627b-4e86-96db-ebe6df6c946b.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
  date published: 2026-06-17T08:11:48Z
  text: {"copyright_id":"0x21a739ef3ab1b813f84137ff1cb718882c92a4c5cbbd4b8531fafef7730a99f8","name":"うずら","registered_at":"2026-06-17T01:08:48Z","symbol":"NIM1233467","token_address":"0xe5d3714cf51449351f9c4f99f0253a7e4f9db6f8","type":"artist","uuid":"659e9cc2-627b-4e86-96db-ebe6df6c946b"}
album: 傍観者による演目
  type: MusicAlbum
  date published: 2023-09-13
album: white lie
  type: MusicAlbum
  date published: 2023-09-13
album: white lie
  type: MusicAlbum
  date published: 2023-09-13
album: Theater Without Actors
  type: MusicAlbum
  date published: 2023-09-13
album: 夏の畔
  type: MusicAlbum
  date published: 2023-10-03
album: Our Borderline
  type: MusicAlbum
  date published: 2023-10-03
album: Hot Night
  type: MusicAlbum
  date published: 2023-10-03
album: 36℃の夜
  type: MusicAlbum
  date published: 2023-10-03
album: Escape from you
  type: MusicAlbum
  date published: 2024-01-31
album: 脱獄
  type: MusicAlbum
  date published: 2024-01-31
album: turn gray
  type: MusicAlbum
  date published: 2024-03-20
album: 行き先を教えて
  type: MusicAlbum
  date published: 2024-03-20
album: 三日月は少し苦い
  type: MusicAlbum
  date published: 2024-08-22
album: おとぎ話になるまで
  type: MusicAlbum
  date published: 2024-11-23
album: この電話番号は現在使われておりません
  type: MusicAlbum
  date published: 2025-02-04
album: ジェーンは凍っていた
  type: MusicAlbum
  date published: 2025-03-16
  track: ジェーンは凍っていた
    type: MusicRecording
    duration: PT3M3S
    duration ms: 183809
    explicit: false
    by artist: うずら
    in album: ジェーンは凍っていた
      type: MusicAlbum
      date published: 2025-03-16
    genre: vocaloid
    isrc code: TCJPE2585809
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-13T00:50:46+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x630d1a8e5e216ade8fdc9acba35ad67db7b4c11ddee1c6db23eaeec445e1d68e
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 957785
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/957785
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCJPE2585809
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-13T01:55:31Z
    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 0x630d1a8e5e216ade8fdc9acba35ad67db7b4c11ddee1c6db23eaeec445e1d68e. Chain 2 (Bitcoin): anchored in block 957785 (2026-07-13T01:55:31Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCJPE2585809 — a six-check JSON result.
      date published: 2026-07-13T01:55:31Z
    audio: ジェーンは凍っていた
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 94.505
      additional property: Musical Key
        type: PropertyValue
        value: 1
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.612
      additional property: Energy
        type: PropertyValue
        value: 0.5
      additional property: Speechiness
        type: PropertyValue
        value: 0.049
      additional property: Acousticness
        type: PropertyValue
        value: 0.573
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.132
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.368
      additional property: Loudness (dB)
        type: PropertyValue
        value: -12.642
      additional property: Key Name
        type: PropertyValue
        value: C#
      additional property: Mode Name
        type: PropertyValue
        value: Minor
album: 迷子をさがして、頬をつねって
  type: MusicAlbum
  date published: 2025-08-27
  track: 迷子をさがして、頬をつねって
    type: MusicRecording
    duration: PT3M4S
    duration ms: 184146
    explicit: false
    by artist: うずら
    in album: 迷子をさがして、頬をつねって
      type: MusicAlbum
      date published: 2025-08-27
    genre: vocaloid
    isrc code: TCJPL2556817
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-19T21:37:37+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xadc29338c2149ad67097d44ffb398090753e173fedd6766d5fbfde34d63f0c9c
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958788
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958788
    additional property: OTSVerificationAPI
    additional property: OTSTimestamp
    additional property: OTSVerifyInstructions
    subject of: OpenTimestamps Proof of Existence
    audio: 迷子をさがして、頬をつねって

OTSVerificationAPI
type: PropertyValue
value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCJPL2556817

OTSTimestamp
type: PropertyValue
value: 2026-07-19T22:07:06Z

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

OpenTimestamps Proof of Existence
type: DigitalDocument
encoding format: application/vnd.opentimestamps.ots
description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xadc29338c2149ad67097d44ffb398090753e173fedd6766d5fbfde34d63f0c9c. Chain 2 (Bitcoin): anchored in block 958788 (2026-07-19T22:07:06Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCJPL2556817 — a six-check JSON result.
date published: 2026-07-19T22:07:06Z

迷子をさがして、頬をつねって
type: AudioObject
additional property: Tempo (BPM)
  type: PropertyValue
  value: 114.58
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: 0.386
additional property: Energy
  type: PropertyValue
  value: 0.554
additional property: Speechiness
  type: PropertyValue
  value: 0.057
additional property: Acousticness
  type: PropertyValue
  value: 0.474
additional property: Instrumentalness
  type: PropertyValue
  value: 0
additional property: Liveness
  type: PropertyValue
  value: 0.125
additional property: Valence (Positivity)
  type: PropertyValue
  value: 0.4
additional property: Loudness (dB)
  type: PropertyValue
  value: -7.342
additional property: Key Name
  type: PropertyValue
  value: C
additional property: Mode Name
  type: PropertyValue
  value: Major