彼方へと続く海
type: MusicGroup
popularity: 2
followers: 56
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xf085b942bd97ab219657a4bc98accbbea47e0febea581e71231b7b925eb9fcc0
additional property: OTSHash
additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954342
additional property: OTSProofURL
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additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/8e523e00-005b-474f-8318-3988b0286858.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/8e523e00-005b-474f-8318-3988b0286858
additional property: OTSTimestamp
  type: PropertyValue
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additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xf085b942bd97ab219657a4bc98accbbea47e0febea581e71231b7b925eb9fcc0","name":"彼方へと続く海","registered_at":"2026-06-17T15:15:47Z","symbol":"NIM1435426","token_address":"0xe8efc7a30253572a9bf3b5456ea715089a96b840","type":"artist","uuid":"8e523e00-005b-474f-8318-3988b0286858"}
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 0xf085b942bd97ab219657a4bc98accbbea47e0febea581e71231b7b925eb9fcc0. Chain 2 (Bitcoin): anchored in block 954342 (2026-06-19T03:22:39Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/8e523e00-005b-474f-8318-3988b0286858.json and https://artists.proofprofile.net/proofs/artist/8e523e00-005b-474f-8318-3988b0286858.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-19T03:22:39Z
  text: {"copyright_id":"0xf085b942bd97ab219657a4bc98accbbea47e0febea581e71231b7b925eb9fcc0","name":"彼方へと続く海","registered_at":"2026-06-17T15:15:47Z","symbol":"NIM1435426","token_address":"0xe8efc7a30253572a9bf3b5456ea715089a96b840","type":"artist","uuid":"8e523e00-005b-474f-8318-3988b0286858"}
album: 宇宙の終わりと始まり
  type: MusicAlbum
  date published: 2024-03-29
  track: 波打ち際での思い出
    type: MusicRecording
    duration: PT1M57S
    duration ms: 117687
    explicit: false
    by artist: 彼方へと続く海
    in album: 宇宙の終わりと始まり
      type: MusicAlbum
      date published: 2024-03-29
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    additional property: CopyrightStatus
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    additional property: CopyrightChainExplorerURL
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    additional property: OTSBitcoinBlock
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    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958808
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/AEA2Z2424107
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-20T05:25:53Z
    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 0xf096395d62a9c7021a7d16e6a8c2bac49bf35eb20650d85ccf8677e71d5dd4d8. Chain 2 (Bitcoin): anchored in block 958808 (2026-07-20T05:25:53Z), 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/AEA2Z2424107.
      date published: 2026-07-20T05:25:53Z
    audio: 波打ち際での思い出
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 83.442
      additional property: Musical Key
        type: PropertyValue
        value: 1
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
        type: PropertyValue
        value: 5
      additional property: Danceability
        type: PropertyValue
        value: 0.228
      additional property: Energy
        type: PropertyValue
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      additional property: Speechiness
        type: PropertyValue
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      additional property: Acousticness
        type: PropertyValue
        value: 0.924
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.746
      additional property: Liveness
        type: PropertyValue
        value: 0.11
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.037
      additional property: Loudness (dB)
        type: PropertyValue
        value: -38.8
      additional property: Key Name
        type: PropertyValue
        value: C#
      additional property: Mode Name
        type: PropertyValue
        value: Minor