江沼郁弥
type: MusicGroup
genre: japanese indie
genre: j-rock
popularity: 12
followers: 5384
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xffcd31c2decdd73d370960bfdef604f47d3fff37d0b9a7e638cf6c3cac09b82a
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953641
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953641
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/3d1b214e-eaf0-4da0-9257-7025a55b072d.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/3d1b214e-eaf0-4da0-9257-7025a55b072d.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/3d1b214e-eaf0-4da0-9257-7025a55b072d
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-14T13:54:28Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xffcd31c2decdd73d370960bfdef604f47d3fff37d0b9a7e638cf6c3cac09b82a","name":"江沼郁弥","registered_at":"2026-06-14T10:51:21Z","symbol":"NIM0429862","token_address":"0x6d3ce5ea5b117bc9596dff99d2c1e32a3b776b1a","type":"artist","uuid":"3d1b214e-eaf0-4da0-9257-7025a55b072d"}
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 0xffcd31c2decdd73d370960bfdef604f47d3fff37d0b9a7e638cf6c3cac09b82a. Chain 2 (Bitcoin): anchored in block 953641 (2026-06-14T13:54:28Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/3d1b214e-eaf0-4da0-9257-7025a55b072d.json and https://artists.proofprofile.net/proofs/artist/3d1b214e-eaf0-4da0-9257-7025a55b072d.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-14T13:54:28Z
  text: {"copyright_id":"0xffcd31c2decdd73d370960bfdef604f47d3fff37d0b9a7e638cf6c3cac09b82a","name":"江沼郁弥","registered_at":"2026-06-14T10:51:21Z","symbol":"NIM0429862","token_address":"0x6d3ce5ea5b117bc9596dff99d2c1e32a3b776b1a","type":"artist","uuid":"3d1b214e-eaf0-4da0-9257-7025a55b072d"}
album: ♯1
  type: MusicAlbum
  date published: 2018-11-07
album: うるせえんだよ
  type: MusicAlbum
  date published: 2019-03-03
album: 偽善からはじめよう
  type: MusicAlbum
  date published: 2019-04-04
album: 積み木くずし
  type: MusicAlbum
  date published: 2019-05-05
album: IYAIYA
  type: MusicAlbum
  date published: 2019-10-16
album: それは流線型
  type: MusicAlbum
  date published: 2019-11-06
album: #1 -another dimension-
  type: MusicAlbum
  date published: 2020-02-26
  track: 光源 - another dimension ver.
    type: MusicRecording
    duration: PT4M25S
    duration ms: 265760
    explicit: false
    by artist: 江沼郁弥
    in album: #1 -another dimension-
      type: MusicAlbum
      date published: 2020-02-26
    genre: japanese indie
    genre: j-rock
    isrc code: JPZ922001251
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-18T07:15:00+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x80c82554146201a65a08440c9008c50e5358a1a6aad59ea9266ba4afa4404c52
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958544
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958544
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPZ922001251
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-18T12:14:37Z
    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 0x80c82554146201a65a08440c9008c50e5358a1a6aad59ea9266ba4afa4404c52. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/JPZ922001251.
      date published: 2026-07-18T12:14:37Z
    audio: 光源 - another dimension ver.
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 109.002
      additional property: Musical Key
        type: PropertyValue
        value: 5
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 3
      additional property: Danceability
        type: PropertyValue
        value: 0.424
      additional property: Energy
        type: PropertyValue
        value: 0.211
      additional property: Speechiness
        type: PropertyValue
        value: 0.03
      additional property: Acousticness
        type: PropertyValue
        value: 0.915
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.591
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.321
      additional property: Loudness (dB)
        type: PropertyValue
        value: -10.119
      additional property: Key Name
        type: PropertyValue
        value: F
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: 景-kei-
  type: MusicAlbum
  date published: 2021-09-22
  track: 景-kei-
    type: MusicRecording
    duration: PT3M49S
    duration ms: 229213
    explicit: false
    by artist: 江沼郁弥
    in album: 景-kei-
      type: MusicAlbum
      date published: 2021-09-22
    genre: japanese indie
    genre: j-rock
    isrc code: JPG102101103
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-06T03:12:25+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xaf08f6bcda4a8ef924c9d2a42ee29031a3460f2bdc0221cf29b980fe084a5857
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 956891
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/956891
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPG102101103
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-06T07:16:32Z
    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 0xaf08f6bcda4a8ef924c9d2a42ee29031a3460f2bdc0221cf29b980fe084a5857. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/JPG102101103.
      date published: 2026-07-06T07:16:32Z
    audio: 景-kei-
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 88.977
      additional property: Musical Key
        type: PropertyValue
        value: 2
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
      additional property: Danceability
      additional property: Energy
      additional property: Speechiness
      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
album: 極楽-EP-
album: 夏をあきらめきれなくて
album: ことさら EP

Time Signature
type: PropertyValue
value: 4

Danceability
type: PropertyValue
value: 0.656

Energy
type: PropertyValue
value: 0.638

Speechiness
type: PropertyValue
value: 0.035

Acousticness
type: PropertyValue
value: 0.057

Instrumentalness
type: PropertyValue
value: 0.003

Liveness
type: PropertyValue
value: 0.305

Valence (Positivity)
type: PropertyValue
value: 0.306

Loudness (dB)
type: PropertyValue
value: -10.518

Key Name
type: PropertyValue
value: D

Mode Name
type: PropertyValue
value: Major

景-kei-
type: MusicAlbum
date published: 2021-10-13

極楽-EP-
type: MusicAlbum
date published: 2022-03-30

夏をあきらめきれなくて
type: MusicAlbum
date published: 2022-08-24

ことさら EP
type: MusicAlbum
date published: 2025-10-01