Fei_
type: MusicGroup
genre: j-rap
popularity: 15
followers: 538
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x795b28ff7977de54d3c1ec1b81c76446b6d5ae97fa7abfaeca2382a72802359e
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953754
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953754
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/ad681cad-9ef8-473e-bfb2-e251d9959d1d.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/ad681cad-9ef8-473e-bfb2-e251d9959d1d.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/ad681cad-9ef8-473e-bfb2-e251d9959d1d
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-15T06:45:19Z
additional property: OTSCanonicalRecord
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 0x795b28ff7977de54d3c1ec1b81c76446b6d5ae97fa7abfaeca2382a72802359e. Chain 2 (Bitcoin): anchored in block 953754 (2026-06-15T06:45:19Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/ad681cad-9ef8-473e-bfb2-e251d9959d1d.json and https://artists.proofprofile.net/proofs/artist/ad681cad-9ef8-473e-bfb2-e251d9959d1d.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-15T06:45:19Z
album: THE SUMMER TRIANGLE
  type: MusicAlbum
  date published: 2021-08-20
album: Emo Switch1.0
  type: MusicAlbum
  date published: 2022-09-23
album: Emo Switch1.0
  type: MusicAlbum
  date published: 2022-09-23
album: 少年の心
  type: MusicAlbum
  date published: 2022-12-23
album: Emo Switch1.5
  type: MusicAlbum
  date published: 2023-01-14
album: promise
  type: MusicAlbum
  date published: 2023-03-19
album: プロミス
  type: MusicAlbum
  date published: 2023-03-19
album: BAD TRIP (feat. Yvng xan)
  type: MusicAlbum
  date published: 2023-07-14
album: BAD TRIP (feat. Yvng xan)
  type: MusicAlbum
  date published: 2023-07-14
album: Aaaa!!!!
  type: MusicAlbum
  date published: 2023-08-12
album: LSD MIND SET
  type: MusicAlbum
  date published: 2023-10-07
album: LSD MIND SET
  type: MusicAlbum
  date published: 2023-10-07
album: IM FREEDOM
  type: MusicAlbum
  date published: 2023-11-26
album: Emo Switch2.0
  type: MusicAlbum
  date published: 2024-01-31
album: Emo Switch2.0
  type: MusicAlbum
  date published: 2024-01-31
  track: PROMISE
    type: MusicRecording
    duration: PT2M42S
    duration ms: 162409
    explicit: true
    by artist: Fei_
    in album: Emo Switch2.0
      type: MusicAlbum
      date published: 2024-01-31
    genre: j-rap
    isrc code: TCJPY2492212
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-22T07:52:15+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x92c6b41f379f9dc3d1cf071f98250e6931a19341aebb0c05abd340fecce4f7af
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 959114
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/959114
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCJPY2492212
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-22T08:41:42Z
    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 0x92c6b41f379f9dc3d1cf071f98250e6931a19341aebb0c05abd340fecce4f7af. Chain 2 (Bitcoin): anchored in block 959114 (2026-07-22T08:41:42Z), 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/TCJPY2492212.
      date published: 2026-07-22T08:41:42Z
    audio: PROMISE
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 84.21
      additional property: Musical Key
        type: PropertyValue
        value: 6
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.497
      additional property: Energy
        type: PropertyValue
        value: 0.684
      additional property: Speechiness
        type: PropertyValue
        value: 0.146
      additional property: Acousticness
        type: PropertyValue
        value: 0.023
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.006
      additional property: Liveness
        type: PropertyValue
        value: 0.183
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.436
      additional property: Loudness (dB)
        type: PropertyValue
        value: -8.624
      additional property: Key Name
        type: PropertyValue
        value: F#
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: YOZAWA (feat. Sol)
  type: MusicAlbum
  date published: 2024-02-28
album: Micro Dose
  type: MusicAlbum
  date published: 2024-05-22
album: 少年の心 (Remix)
  type: MusicAlbum
  date published: 2024-06-25
album: 少年の心 (feat. Sol) [Remix]
  type: MusicAlbum
  date published: 2024-06-26
album: Shonen No Kokoro (feat. Sol) [Remix]
  type: MusicAlbum
  date published: 2024-06-26
album: LIFE IS VACATION (feat. Tenchi & Liskyarts)
  type: MusicAlbum
  date published: 2024-07-31
album: LIFE IS VACATION (feat. Tenchi & Liskyarts)
  type: MusicAlbum
  date published: 2024-07-31
album: Forever Sound Cloud Memories
  type: MusicAlbum
  date published: 2024-10-30
  track: BAD TRIP (feat. Yvng xan)
    type: MusicRecording
    duration: PT2M7S
    duration ms: 127908
    explicit: false
    by artist: Fei_
    in album: Forever Sound Cloud Memories
      type: MusicAlbum
      date published: 2024-10-30
    genre: j-rap
    isrc code: TCJPC2424551
    additional property: CopyrightID
    additional property: CopyrightStatus
    additional property: CopyrightRegisteredAt
    additional property: CopyrightChainExplorerURL
    additional property: OTSHash
    additional property: OTSBitcoinBlock
    additional property: OTSBitcoinBlockVerifyURL
    additional property: OTSVerificationAPI
    additional property: OTSTimestamp
    additional property: OTSVerifyInstructions
    subject of: OpenTimestamps Proof of Existence
    audio: BAD TRIP (feat. Yvng xan)
album: Sky Walker (feat. timmy dio & KOHSHINOMIYA)
album: ONEGAI
album: お願い
album: アイデンティティクライシス
album: IDENTITY CRISIS
album: THE EMOTIONAL TRIP
album: Love Overdose
album: Hanaretakunantenaiyo
album: 離れたくなんてないよ
album: Shall We Dance？
album: Shall We Dance?

CopyrightID
type: PropertyValue

CopyrightStatus
type: PropertyValue
value: registered

CopyrightRegisteredAt
type: PropertyValue
value: 2026-07-04T20:14:05+00:00

CopyrightChainExplorerURL
type: PropertyValue
value: https://explorer.copyrightchains.com/tx/0xe71533dedffa0eed0ffcde1485a33b5be806af4befcd7dc430bc85dd9fdba77d

OTSHash
type: PropertyValue

OTSBitcoinBlock
type: PropertyValue
value: 956725

OTSBitcoinBlockVerifyURL
type: PropertyValue
value: https://blockstream.info/api/block-height/956725

OTSVerificationAPI
type: PropertyValue
value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCJPC2424551

OTSTimestamp
type: PropertyValue
value: 2026-07-05T01:12:41Z

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

OpenTimestamps Proof of Existence
type: DigitalDocument
encoding format: application/vnd.opentimestamps.ots
description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe71533dedffa0eed0ffcde1485a33b5be806af4befcd7dc430bc85dd9fdba77d. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/TCJPC2424551.
date published: 2026-07-05T01:12:41Z

BAD TRIP (feat. Yvng xan)
type: AudioObject
additional property: Tempo (BPM)
  type: PropertyValue
  value: 90.978
additional property: Musical Key
  type: PropertyValue
  value: 9
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: 0.912
additional property: Speechiness
  type: PropertyValue
  value: 0.045
additional property: Acousticness
  type: PropertyValue
  value: 0.058
additional property: Instrumentalness
  type: PropertyValue
  value: 0.212
additional property: Liveness
  type: PropertyValue
  value: 0.135
additional property: Valence (Positivity)
  type: PropertyValue
  value: 0.414
additional property: Loudness (dB)
  type: PropertyValue
  value: -6.904
additional property: Key Name
  type: PropertyValue
  value: A
additional property: Mode Name
  type: PropertyValue
  value: Major

Forever Sound Cloud Memories
type: MusicAlbum
date published: 2024-10-30

Sky Walker (feat. timmy dio & KOHSHINOMIYA)
type: MusicAlbum
date published: 2024-12-11

Sky Walker (feat. timmy dio & KOHSHINOMIYA)
type: MusicAlbum
date published: 2024-12-11

ONEGAI
type: MusicAlbum
date published: 2025-02-19

お願い
type: MusicAlbum
date published: 2025-02-19

アイデンティティクライシス
type: MusicAlbum
date published: 2025-03-19

IDENTITY CRISIS
type: MusicAlbum
date published: 2025-03-19

THE EMOTIONAL TRIP
type: MusicAlbum
date published: 2025-04-30

THE EMOTIONAL TRIP
type: MusicAlbum
date published: 2025-04-30

Love Overdose
type: MusicAlbum
date published: 2025-09-10

Love Overdose
type: MusicAlbum
date published: 2025-09-10

Hanaretakunantenaiyo
type: MusicAlbum
date published: 2025-09-27

離れたくなんてないよ
type: MusicAlbum
date published: 2025-09-27

Shall We Dance？
type: MusicAlbum
date published: 2025-10-22

Shall We Dance?
type: MusicAlbum
date published: 2025-10-22