哀乃
type: MusicGroup
genre: vocaloid
popularity: 9
followers: 168
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x39de5184a14e3767bc51fc7a603b2ba1297ff8322a225ac121a9106fc63d0131
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954784
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954784
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/eca17bed-263c-446b-82ba-333185401f48.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/eca17bed-263c-446b-82ba-333185401f48.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/eca17bed-263c-446b-82ba-333185401f48
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-22T02:53:59Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x39de5184a14e3767bc51fc7a603b2ba1297ff8322a225ac121a9106fc63d0131","name":"哀乃","registered_at":"2026-06-21T11:43:07Z","symbol":"NIM1914433","token_address":"0x145efa82f51038240253f8f0150f5f9617c904d4","type":"artist","uuid":"eca17bed-263c-446b-82ba-333185401f48"}
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 0x39de5184a14e3767bc51fc7a603b2ba1297ff8322a225ac121a9106fc63d0131. Chain 2 (Bitcoin): anchored in block 954784 (2026-06-22T02:53:59Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/eca17bed-263c-446b-82ba-333185401f48.json and https://artists.proofprofile.net/proofs/artist/eca17bed-263c-446b-82ba-333185401f48.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-22T02:53:59Z
  text: {"copyright_id":"0x39de5184a14e3767bc51fc7a603b2ba1297ff8322a225ac121a9106fc63d0131","name":"哀乃","registered_at":"2026-06-21T11:43:07Z","symbol":"NIM1914433","token_address":"0x145efa82f51038240253f8f0150f5f9617c904d4","type":"artist","uuid":"eca17bed-263c-446b-82ba-333185401f48"}
album: 罪華
  type: MusicAlbum
  date published: 2022-04-30
album: 死季
  type: MusicAlbum
  date published: 2022-11-20
album: ビター＆スウィート (feat. 瀬兎一也)
  type: MusicAlbum
  date published: 2023-01-26
album: 形而上奇譚
  type: MusicAlbum
  date published: 2023-04-30
album: 紅玉は渦中で嗤う
  type: MusicAlbum
  date published: 2024-01-01
  track: 紅玉は渦中で嗤う
    type: MusicRecording
    duration: PT3M19S
    duration ms: 199411
    explicit: false
    by artist: 哀乃
    in album: 紅玉は渦中で嗤う
      type: MusicAlbum
      date published: 2024-01-01
    genre: vocaloid
    isrc code: TCJPY2340955
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xd874c145528ae44abc12ae54f452515d593b260ee164fa4957d881bebba9b848
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958377
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958377
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCJPY2340955
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-17T08:58:24Z
    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 0xd874c145528ae44abc12ae54f452515d593b260ee164fa4957d881bebba9b848. Chain 2 (Bitcoin): anchored in block 958377 (2026-07-17T08:58:24Z), 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/TCJPY2340955.
      date published: 2026-07-17T08:58:24Z
    audio: 紅玉は渦中で嗤う
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 135.982
      additional property: Musical Key
        type: PropertyValue
        value: 11
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.681
      additional property: Energy
        type: PropertyValue
        value: 0.869
      additional property: Speechiness
        type: PropertyValue
        value: 0.061
      additional property: Acousticness
        type: PropertyValue
        value: 0.023
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.129
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.668
      additional property: Loudness (dB)
        type: PropertyValue
        value: -5.76
      additional property: Key Name
        type: PropertyValue
        value: B
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: 追憶と紫煙
  type: MusicAlbum
  date published: 2024-12-16
album: 蒼炎 (feat. 初音ミク)
  type: MusicAlbum
  date published: 2025-01-31
album: 人形と黒翳
  type: MusicAlbum
  date published: 2025-02-22
album: 晦冥裂く緋星
  type: MusicAlbum
  date published: 2025-03-11
album: 真愛ハ朱ニ交ワラズ
  type: MusicAlbum
  date published: 2025-04-01
  track: 真愛ハ朱ニ交ワラズ
    type: MusicRecording
    duration: PT3M24S
    duration ms: 204705
    explicit: false
    by artist: 哀乃
    in album: 真愛ハ朱ニ交ワラズ
      type: MusicAlbum
      date published: 2025-04-01
    genre: vocaloid
    isrc code: TCJPF2515549
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-03T10:16:49+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x32eac3833cf951e2d04668aaa6bb016f12b86c6b4f4d513ed630e575b9b32186
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 956551
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/956551
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCJPF2515549
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-03T21:18:05Z
    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 0x32eac3833cf951e2d04668aaa6bb016f12b86c6b4f4d513ed630e575b9b32186. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/TCJPF2515549.
      date published: 2026-07-03T21:18:05Z
    audio: 真愛ハ朱ニ交ワラズ
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 130.028
      additional property: Musical Key
        type: PropertyValue
        value: 2
      additional property: Mode (Major/Minor)
      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: 喜劇は黄昏に幕
album: 碧落の夢を見る
album: 翠嵐の彼方より
album: INNOCENCE (feat. ろ灯)
album: 愛は桃源にて

Mode (Major/Minor)
type: PropertyValue
value: 0

Time Signature
type: PropertyValue
value: 4

Danceability
type: PropertyValue
value: 0.553

Energy
type: PropertyValue
value: 0.981

Speechiness
type: PropertyValue
value: 0.041

Acousticness
type: PropertyValue
value: 0.284

Instrumentalness
type: PropertyValue
value: 0

Liveness
type: PropertyValue
value: 0.38

Valence (Positivity)
type: PropertyValue
value: 0.65

Loudness (dB)
type: PropertyValue
value: -4.5

Key Name
type: PropertyValue
value: D

Mode Name
type: PropertyValue
value: Minor

喜劇は黄昏に幕
type: MusicAlbum
date published: 2025-05-31

碧落の夢を見る
type: MusicAlbum
date published: 2025-06-25
track: 碧落の夢を見る
  type: MusicRecording
  duration: PT3M37S
  duration ms: 217058
  explicit: false
  by artist: 哀乃
  in album: 碧落の夢を見る
    type: MusicAlbum
    date published: 2025-06-25
  genre: vocaloid
  isrc code: TCJPJ2516034
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-19T02:55:00+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x058c53ccb44865dd674e1ba0a7a384b83d71a754281ca3de5a4e9e04664c1217
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 958690
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/958690
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCJPJ2516034
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-19T07:14:39Z
  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 0x058c53ccb44865dd674e1ba0a7a384b83d71a754281ca3de5a4e9e04664c1217. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/TCJPJ2516034.
    date published: 2026-07-19T07:14:39Z
  audio: 碧落の夢を見る
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 179.993
    additional property: Musical Key
      type: PropertyValue
      value: 5
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 0
    additional property: Time Signature
      type: PropertyValue
      value: 3
    additional property: Danceability
      type: PropertyValue
      value: 0.43
    additional property: Energy
      type: PropertyValue
      value: 0.71
    additional property: Speechiness
      type: PropertyValue
      value: 0.033
    additional property: Acousticness
      type: PropertyValue
      value: 0.13
    additional property: Instrumentalness
      type: PropertyValue
      value: 0
    additional property: Liveness
      type: PropertyValue
      value: 0.402
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.682
    additional property: Loudness (dB)
      type: PropertyValue
      value: -6.441
    additional property: Key Name
      type: PropertyValue
      value: F
    additional property: Mode Name
      type: PropertyValue
      value: Minor

翠嵐の彼方より
type: MusicAlbum
date published: 2025-07-31

INNOCENCE (feat. ろ灯)
type: MusicAlbum
date published: 2025-08-22

愛は桃源にて
type: MusicAlbum
date published: 2025-08-24