さゆに!
type: MusicGroup
genre: modern-j-rock
popularity: 9
followers: 1640
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xd82cba7f441e53610b8b0beb29e78d4e937c1975d582825e976bb9e42fba631c
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953903
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953903
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/136a47d9-885b-4fcf-b4ec-36562c080936.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/136a47d9-885b-4fcf-b4ec-36562c080936.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/136a47d9-885b-4fcf-b4ec-36562c080936
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T07:05:05Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xd82cba7f441e53610b8b0beb29e78d4e937c1975d582825e976bb9e42fba631c","name":"さゆに!","registered_at":"2026-06-15T20:31:38Z","symbol":"NIM0823654","token_address":"0xb5dd226a53d0d3c3031039d94988d93f6e4f3e21","type":"artist","uuid":"136a47d9-885b-4fcf-b4ec-36562c080936"}
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 0xd82cba7f441e53610b8b0beb29e78d4e937c1975d582825e976bb9e42fba631c. Chain 2 (Bitcoin): anchored in block 953903 (2026-06-16T07:05:05Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/136a47d9-885b-4fcf-b4ec-36562c080936.json and https://artists.proofprofile.net/proofs/artist/136a47d9-885b-4fcf-b4ec-36562c080936.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-16T07:05:05Z
  text: {"copyright_id":"0xd82cba7f441e53610b8b0beb29e78d4e937c1975d582825e976bb9e42fba631c","name":"さゆに!","registered_at":"2026-06-15T20:31:38Z","symbol":"NIM0823654","token_address":"0xb5dd226a53d0d3c3031039d94988d93f6e4f3e21","type":"artist","uuid":"136a47d9-885b-4fcf-b4ec-36562c080936"}
album: 東京街灯
  type: MusicAlbum
  date published: 2023-05-24
  track: 東京街灯
    type: MusicRecording
    duration: PT4M7S
    duration ms: 247733
    explicit: false
    by artist: さゆに!
    in album: 東京街灯
      type: MusicAlbum
      date published: 2023-05-24
    popularity: 7
    genre: modern-j-rock
    isrc code: JPCO02308820
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-29T20:30:31+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x20b0f7d6d4faada220e86039f84bd10b25a6514b0af6fc865a0c244f7999ad80
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 960144
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/960144
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPCO02308820
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-29T21:09:47Z
    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 0x20b0f7d6d4faada220e86039f84bd10b25a6514b0af6fc865a0c244f7999ad80. Chain 2 (Bitcoin): anchored in block 960144 (2026-07-29T21:09:47Z), 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/JPCO02308820.
      date published: 2026-07-29T21:09:47Z
    audio: 東京街灯
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 124.799
      additional property: Musical Key
        type: PropertyValue
        value: 10
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
        type: PropertyValue
        value: 5
      additional property: Danceability
        type: PropertyValue
        value: 0.769
      additional property: Energy
        type: PropertyValue
        value: 0.773
      additional property: Speechiness
        type: PropertyValue
        value: 0.035
      additional property: Acousticness
        type: PropertyValue
        value: 0.02
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.367
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.971
      additional property: Loudness (dB)
        type: PropertyValue
        value: -7.746
      additional property: Key Name
        type: PropertyValue
        value: Bb
      additional property: Mode Name
        type: PropertyValue
        value: Minor
album: 合言葉
  type: MusicAlbum
  date published: 2023-02-22
  track: 合言葉
    type: MusicRecording
    duration: PT3M17S
    duration ms: 197066
    explicit: false
    by artist: さゆに!
    in album: 合言葉
      type: MusicAlbum
      date published: 2023-02-22
    genre: modern-j-rock
    isrc code: JPCO02233690
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-30T20:14:05+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x47defdf22e5b727c6b7d9649690f36f1b072cce022bd86dace675a62a994dc9b
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 960309
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/960309
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPCO02233690
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-30T20:35:49Z
    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 0x47defdf22e5b727c6b7d9649690f36f1b072cce022bd86dace675a62a994dc9b. Chain 2 (Bitcoin): anchored in block 960309 (2026-07-30T20:35:49Z), 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/JPCO02233690.
      date published: 2026-07-30T20:35:49Z
    audio: 合言葉
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 131.624
      additional property: Musical Key
        type: PropertyValue
        value: 5
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
        type: PropertyValue
        value: 5
      additional property: Danceability
        type: PropertyValue
        value: 0.836
      additional property: Energy
        type: PropertyValue
        value: 0.526
      additional property: Speechiness
        type: PropertyValue
        value: 0.071
      additional property: Acousticness
        type: PropertyValue
        value: 0.018
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
      additional property: Valence (Positivity)
      additional property: Loudness (dB)
      additional property: Key Name
      additional property: Mode Name

Liveness
type: PropertyValue
value: 0.045

Valence (Positivity)
type: PropertyValue
value: 0.891

Loudness (dB)
type: PropertyValue
value: -9.931

Key Name
type: PropertyValue
value: F

Mode Name
type: PropertyValue
value: Minor