藤原ナオヒロ
type: MusicGroup
popularity: 3
followers: 12
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xf0b8ecd8b15d9eb6e0e036e87e52230c2b950d34b76052131b9bdc4f0418b1e8
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954062
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954062
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/4742e2de-3ae2-42ad-98c2-cdbef3856c8f.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/4742e2de-3ae2-42ad-98c2-cdbef3856c8f.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/4742e2de-3ae2-42ad-98c2-cdbef3856c8f
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T07:39:10Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xf0b8ecd8b15d9eb6e0e036e87e52230c2b950d34b76052131b9bdc4f0418b1e8","name":"藤原ナオヒロ","registered_at":"2026-06-16T14:27:09Z","symbol":"NIM1080381","token_address":"0x54d2ab79759b4cba6f4ebc4d361ead82ab3cd57b","type":"artist","uuid":"4742e2de-3ae2-42ad-98c2-cdbef3856c8f"}
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 0xf0b8ecd8b15d9eb6e0e036e87e52230c2b950d34b76052131b9bdc4f0418b1e8. Chain 2 (Bitcoin): anchored in block 954062 (2026-06-17T07:39:10Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/4742e2de-3ae2-42ad-98c2-cdbef3856c8f.json and https://artists.proofprofile.net/proofs/artist/4742e2de-3ae2-42ad-98c2-cdbef3856c8f.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T07:39:10Z
  text: {"copyright_id":"0xf0b8ecd8b15d9eb6e0e036e87e52230c2b950d34b76052131b9bdc4f0418b1e8","name":"藤原ナオヒロ","registered_at":"2026-06-16T14:27:09Z","symbol":"NIM1080381","token_address":"0x54d2ab79759b4cba6f4ebc4d361ead82ab3cd57b","type":"artist","uuid":"4742e2de-3ae2-42ad-98c2-cdbef3856c8f"}
album: Colors of a dream (2018 REMASTERED EDITION)
  type: MusicAlbum
  date published: 2018-04-09
album: Sweet Chatty (2025 Remastered Edition)
  type: MusicAlbum
  date published: 2021-12-16
album: Limit, Unlimit (2022 Remix)
  type: MusicAlbum
  date published: 2022-10-18
album: LOST (2023 Remastered)
  type: MusicAlbum
  date published: 2023-11-08
  track: LOST - 2023 Remastered
    type: MusicRecording
    duration: PT5M37S
    duration ms: 337500
    explicit: false
    by artist: 藤原ナオヒロ
    in album: LOST (2023 Remastered)
      type: MusicAlbum
      date published: 2023-11-08
    isrc code: TCJPX2399471
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-05T11:07:57+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x4d5242bf9c0024ad9d3b7e47880c8e0a063060831cab735fefd2e4dd64f47645
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 956822
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/956822
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCJPX2399471
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-05T18:48:28Z
    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 0x4d5242bf9c0024ad9d3b7e47880c8e0a063060831cab735fefd2e4dd64f47645. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/TCJPX2399471.
      date published: 2026-07-05T18:48:28Z
    audio: LOST - 2023 Remastered
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 143.989
      additional property: Musical Key
        type: PropertyValue
        value: 0
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.633
      additional property: Energy
        type: PropertyValue
        value: 0.63
      additional property: Speechiness
        type: PropertyValue
        value: 0.028
      additional property: Acousticness
        type: PropertyValue
        value: 0.044
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.084
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.324
      additional property: Loudness (dB)
        type: PropertyValue
        value: -8.349
      additional property: Key Name
        type: PropertyValue
        value: C
      additional property: Mode Name
        type: PropertyValue
        value: Minor
album: A Romantic Breath (2024 Edition)
  type: MusicAlbum
  date published: 2024-05-01
album: INTEREST (2025MIX)
  type: MusicAlbum
  date published: 2025-02-11
  track: INTEREST - 2025MIX
    type: MusicRecording
    duration: PT5M1S
    duration ms: 301920
    explicit: false
    by artist: 藤原ナオヒロ
    in album: INTEREST (2025MIX)
      type: MusicAlbum
      date published: 2025-02-11
    isrc code: TCJPD2586424
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-20T08:19:51+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x85430c3dc091ea3c42acd352b8683baaba523496ff3889c01bca97eb3a2263ef
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 959163
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/959163
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCJPD2586424
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-22T18:47:29Z
    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 0x85430c3dc091ea3c42acd352b8683baaba523496ff3889c01bca97eb3a2263ef. Chain 2 (Bitcoin): anchored in block 959163 (2026-07-22T18:47:29Z), 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/TCJPD2586424.
      date published: 2026-07-22T18:47:29Z
    audio: INTEREST - 2025MIX
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 124.988
      additional property: Musical Key
        type: PropertyValue
        value: 9
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.586
      additional property: Energy
        type: PropertyValue
        value: 0.772
      additional property: Speechiness
        type: PropertyValue
        value: 0.035
      additional property: Acousticness
      additional property: Instrumentalness
      additional property: Liveness
      additional property: Valence (Positivity)
      additional property: Loudness (dB)
      additional property: Key Name
      additional property: Mode Name

Acousticness
type: PropertyValue
value: 0.011

Instrumentalness
type: PropertyValue
value: 0.16

Liveness
type: PropertyValue
value: 0.384

Valence (Positivity)
type: PropertyValue
value: 0.739

Loudness (dB)
type: PropertyValue
value: -9.585

Key Name
type: PropertyValue
value: A

Mode Name
type: PropertyValue
value: Minor