柳 小春(CV :七木奏音)
type: MusicGroup
popularity: 6
followers: 15
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x4bb7c2c0d863d24a9315e2f1f8ad71aefc0cfd992beb1f2b9c034d9c7054c046
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953871
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953871
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/073637d6-0e00-424f-bb9e-904ebef844fa.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/073637d6-0e00-424f-bb9e-904ebef844fa.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/073637d6-0e00-424f-bb9e-904ebef844fa
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T01:46:03Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x4bb7c2c0d863d24a9315e2f1f8ad71aefc0cfd992beb1f2b9c034d9c7054c046","name":"柳 小春(CV :七木奏音)","registered_at":"2026-06-15T16:07:34Z","symbol":"NIM0760659","token_address":"0x372a1b63994ffe0fb133d81de611ba8d7c98d66d","type":"artist","uuid":"073637d6-0e00-424f-bb9e-904ebef844fa"}
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 0x4bb7c2c0d863d24a9315e2f1f8ad71aefc0cfd992beb1f2b9c034d9c7054c046. Chain 2 (Bitcoin): anchored in block 953877 (2026-06-16T02:39:16Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/073637d6-0e00-424f-bb9e-904ebef844fa.json and https://artists.proofprofile.net/proofs/artist/073637d6-0e00-424f-bb9e-904ebef844fa.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-16T02:39:16Z
  text: {"copyright_id":"0x4bb7c2c0d863d24a9315e2f1f8ad71aefc0cfd992beb1f2b9c034d9c7054c046","name":"柳 小春(CV :七木奏音)","registered_at":"2026-06-15T16:07:34Z","symbol":"NIM0760659","token_address":"0x372a1b63994ffe0fb133d81de611ba8d7c98d66d","type":"artist","uuid":"073637d6-0e00-424f-bb9e-904ebef844fa"}
track: 別れの戦記

別れの戦記
type: MusicRecording
duration: PT4M10S
duration ms: 250000
explicit: false
by artist: 天堂真矢(CV:富田麻帆)
by artist: 花柳香子(CV:伊藤彩沙)
by artist: 愛城華恋(CV:小山百代)
by artist: 露崎まひる(CV：岩田陽葵)
by artist: 大場なな(CV:小泉萌香)
by artist: 石動双葉(CV:生田輝)
by artist: 柳 小春(CV :七木奏音)
by artist: 西條クロディーヌ(CV:相羽あいな)
by artist: 星見純那(CV:佐藤日向)
in album: 別れの戦記
  type: MusicAlbum
  date published: 2024-11-16
isrc code: JPR562400333
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-18T08:56:55+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xa63a87b32038006853fb6c63c607d40da1e0c1a14b721bca19c5ce742f05b45d
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 956302
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/956302
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPR562400333
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-02T03:30:09Z
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: 956302
additional property: BitcoinTime
  type: PropertyValue
  value: 2026-07-02T03:30:09+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 0xa63a87b32038006853fb6c63c607d40da1e0c1a14b721bca19c5ce742f05b45d. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/JPR562400333.
  date published: 2026-07-02T03:30:09Z
audio: 別れの戦記
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 152
  additional property: Musical Key
    type: PropertyValue
    value: 1
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.484
  additional property: Energy
    type: PropertyValue
    value: 0.906
  additional property: Speechiness
    type: PropertyValue
    value: 0.048
  additional property: Acousticness
    type: PropertyValue
    value: 0.003
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.207
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.593
  additional property: Loudness (dB)
    type: PropertyValue
    value: -8.65
  additional property: Key Name
    type: PropertyValue
    value: C#
  additional property: Mode Name
    type: PropertyValue
    value: Major