大城美友
type: MusicGroup
genre: anime
popularity: 12
followers: 1520
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x53859d1c004aaf7f75778c7c470f34f2710343fae8e26a40e06aeef03481fbf7
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953625
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953625
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/29bb9bfc-8f39-4883-bc29-045cd5fadc63.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/29bb9bfc-8f39-4883-bc29-045cd5fadc63.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/29bb9bfc-8f39-4883-bc29-045cd5fadc63
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-14T11:37:06Z
additional property: OTSCanonicalRecord
  type: PropertyValue
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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
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53859d1c004aaf7f75778c7c470f34f2710343fae8e26a40e06aeef03481fbf7. Chain 2 (Bitcoin): anchored in block 953626 (2026-06-14T11:41:45Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/29bb9bfc-8f39-4883-bc29-045cd5fadc63.json and https://artists.proofprofile.net/proofs/artist/29bb9bfc-8f39-4883-bc29-045cd5fadc63.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-14T11:41:45Z
  text: {"copyright_id":"0x53859d1c004aaf7f75778c7c470f34f2710343fae8e26a40e06aeef03481fbf7","name":"大城美友","registered_at":"2026-06-14T08:51:17Z","symbol":"NIM0401211","token_address":"0x3a9df3c835fbd6b6f5c6fed0c9ad53598814477d","type":"artist","uuid":"29bb9bfc-8f39-4883-bc29-045cd5fadc63"}
album: MI-POSITION
  type: MusicAlbum
  date published: 2018-10-10
  track: 声が枯れるまで
    type: MusicRecording
    duration: PT4M44S
    duration ms: 284040
    explicit: false
    by artist: 大城美友
    in album: MI-POSITION
      type: MusicAlbum
      date published: 2018-10-10
    genre: anime
    isrc code: JPCR01805560
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-19T19:31:15+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xa4f11f1a42f92ad6d6632f85fcf3159d5f94d2a36066aeb20ed1d5b12e9a3c12
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958774
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958774
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPCR01805560
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-19T22:35:01Z
    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 0xa4f11f1a42f92ad6d6632f85fcf3159d5f94d2a36066aeb20ed1d5b12e9a3c12. Chain 2 (Bitcoin): anchored in block 958774 (2026-07-19T22:35:01Z), 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/JPCR01805560.
      date published: 2026-07-19T22:35:01Z
    audio: 声が枯れるまで
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 76.997
      additional property: Musical Key
        type: PropertyValue
        value: 7
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.578
      additional property: Energy
        type: PropertyValue
        value: 0.412
      additional property: Speechiness
        type: PropertyValue
        value: 0.028
      additional property: Acousticness
        type: PropertyValue
        value: 0.831
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.123
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.468
      additional property: Loudness (dB)
        type: PropertyValue
        value: -5.755
      additional property: Key Name
        type: PropertyValue
        value: G
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: MI-JUNGLE
  type: MusicAlbum
  date published: 2019-08-21
  track: ミラクル・ガール
    type: MusicRecording
    duration: PT3M44S
    duration ms: 224386
    explicit: false
    by artist: 大城美友
    in album: MI-JUNGLE
      type: MusicAlbum
      date published: 2019-08-21
    genre: anime
    isrc code: JPCR01902650
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-16T03:52:16+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xbf6c8d33a04f93d17991499d9954835279a89fec874a0649c3f2674131abdebb
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958245
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958245
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPCR01902650
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-16T06:54:23Z
    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 0xbf6c8d33a04f93d17991499d9954835279a89fec874a0649c3f2674131abdebb. Chain 2 (Bitcoin): anchored in block 958245 (2026-07-16T06:54:23Z), 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/JPCR01902650.
      date published: 2026-07-16T06:54:23Z
    audio: ミラクル・ガール
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 129.952
      additional property: Musical Key
        type: PropertyValue
        value: 8
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.729
      additional property: Energy
        type: PropertyValue
        value: 0.928
      additional property: Speechiness
        type: PropertyValue
        value: 0.03
      additional property: Acousticness
        type: PropertyValue
        value: 0.014
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.001
      additional property: Liveness
        type: PropertyValue
        value: 0.08
      additional property: Valence (Positivity)
      additional property: Loudness (dB)
      additional property: Key Name
      additional property: Mode Name
album: ヤンチャ風
album: ブルー・ホライズン
album: TURNING POINT
track: I LOVE YOU

I LOVE YOU
type: MusicRecording
duration: PT3M55S
duration ms: 235866
explicit: false
by artist: SPICY CHOCOLATE
by artist: RUEED
by artist: 大城美友
in album: 渋谷純愛物語2
  type: MusicAlbum
  date published: 2015-12-23
popularity: 14
genre: j-pop
genre: j-r-b
isrc code: JPPO01511652
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-24T09:14:39+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x768eba8c9f2421c540276ba5c1baa769da83a3966a5bed39f1787a8974f18540
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 956304
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/956304
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPPO01511652
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-02T03:55:08+00:00
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
additional property: ProofProfileEvidenceStatus
  type: PropertyValue
  value: verified-cc-db-prod
additional property: TokenDeploymentConfirmed
  type: PropertyValue
  value: true
additional property: ContentHash
additional property: BitcoinBlock
  type: PropertyValue
  value: 956304
additional property: BitcoinTime
  type: PropertyValue
  value: 2026-07-02T03:55:08+00:00
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x768eba8c9f2421c540276ba5c1baa769da83a3966a5bed39f1787a8974f18540. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/JPPO01511652.
  date published: 2026-07-02T05:09:12Z
audio: I LOVE YOU
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 115.98
  additional property: Musical Key
    type: PropertyValue
    value: 9
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.766
  additional property: Energy
    type: PropertyValue
    value: 0.868
  additional property: Speechiness
    type: PropertyValue
    value: 0.046
  additional property: Acousticness
    type: PropertyValue
    value: 0.219
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.058
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.749
  additional property: Loudness (dB)
    type: PropertyValue
    value: -6.67
  additional property: Key Name
    type: PropertyValue
    value: A
  additional property: Mode Name
    type: PropertyValue
    value: Major

Valence (Positivity)
type: PropertyValue
value: 0.85

Loudness (dB)
type: PropertyValue
value: -2.271

Key Name
type: PropertyValue
value: Ab

Mode Name
type: PropertyValue
value: Major

ヤンチャ風
type: MusicAlbum
date published: 2020-11-11

ブルー・ホライズン
type: MusicAlbum
date published: 2021-01-14

TURNING POINT
type: MusicAlbum
date published: 2021-02-10