Wu Fei
type: MusicGroup
popularity: 10
followers: 1988
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x1d09d8929e8d6d62690a8c5e3112bd477c71c837ac33699e48f0126d4e6499f4
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954066
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954066
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/7528064c-c835-4bf9-be85-42e7750fe708.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/7528064c-c835-4bf9-be85-42e7750fe708.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/7528064c-c835-4bf9-be85-42e7750fe708
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T08:11:48Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x1d09d8929e8d6d62690a8c5e3112bd477c71c837ac33699e48f0126d4e6499f4","name":"Wu Fei","registered_at":"2026-06-17T06:52:36Z","symbol":"NIM1315531","token_address":"0x60915ac7358719f9f9227f590e06664c349ae0cc","type":"artist","uuid":"7528064c-c835-4bf9-be85-42e7750fe708"}
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 0x1d09d8929e8d6d62690a8c5e3112bd477c71c837ac33699e48f0126d4e6499f4. Chain 2 (Bitcoin): anchored in block 954066 (2026-06-17T08:11:48Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/7528064c-c835-4bf9-be85-42e7750fe708.json and https://artists.proofprofile.net/proofs/artist/7528064c-c835-4bf9-be85-42e7750fe708.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T08:11:48Z
  text: {"copyright_id":"0x1d09d8929e8d6d62690a8c5e3112bd477c71c837ac33699e48f0126d4e6499f4","name":"Wu Fei","registered_at":"2026-06-17T06:52:36Z","symbol":"NIM1315531","token_address":"0x60915ac7358719f9f9227f590e06664c349ae0cc","type":"artist","uuid":"7528064c-c835-4bf9-be85-42e7750fe708"}
album: A Distant Youth
  type: MusicAlbum
  date published: 2007
album: A Distant Youth
  type: MusicAlbum
  date published: 2007-08-01
album: Yuan
  type: MusicAlbum
  date published: 2008-11-25
album: Water is Wide / Wusuli Boat Song
  type: MusicAlbum
  date published: 2020-02-11
album: The Roving Cowboy / Avarguli
  type: MusicAlbum
  date published: 2020-03-05
album: Four Seasons Medley: Four Seasons / Dark Ocean Waltz
  type: MusicAlbum
  date published: 2020-03-25
album: Wu Fei & Abigail Washburn
  type: MusicAlbum
  date published: 2020-04-03
  track: Water is Wide / Wusuli Boat Song (乌苏里船歌)
    type: MusicRecording
    duration: PT4M16S
    duration ms: 256400
    explicit: false
    by artist: Wu Fei
    in album: Wu Fei & Abigail Washburn
      type: MusicAlbum
      date published: 2020-04-03
    isrc code: USSF12023601
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-19T21:53:04+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xe6b6ede7b5bc22240847140d2c79ca087e93af16c1908599e398be701541e9d6
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958793
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958793
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USSF12023601
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-19T22:59:45Z
    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 0xe6b6ede7b5bc22240847140d2c79ca087e93af16c1908599e398be701541e9d6. Chain 2 (Bitcoin): anchored in block 958793 (2026-07-19T22:59:45Z), 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/USSF12023601.
      date published: 2026-07-19T22:59:45Z
    audio: Water is Wide / Wusuli Boat Song (乌苏里船歌)
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 121.546
      additional property: Musical Key
        type: PropertyValue
        value: 2
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.568
      additional property: Energy
        type: PropertyValue
        value: 0.207
      additional property: Speechiness
        type: PropertyValue
        value: 0.037
      additional property: Acousticness
        type: PropertyValue
        value: 0.978
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.325
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.222
      additional property: Loudness (dB)
        type: PropertyValue
        value: -10.015
      additional property: Key Name
        type: PropertyValue
        value: D
      additional property: Mode Name
        type: PropertyValue
        value: Major
  track: Banjo Guzheng Pickin' Girls (天涯海角走一遍)
    type: MusicRecording
    duration: PT2M23S
    duration ms: 143453
    explicit: false
    by artist: Wu Fei
    in album: Wu Fei & Abigail Washburn
      type: MusicAlbum
      date published: 2020-04-03
    isrc code: USSF12023604
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-17T03:04:49+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x13ca01f0699a40da758a6a302b0b8e55b4da573458928e59743139b72821421b
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958357
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958357
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USSF12023604
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-17T03:33:42Z
    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
    subject of: OpenTimestamps Proof of Existence
      type: DigitalDocument
      encoding format: application/vnd.opentimestamps.ots
      description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13ca01f0699a40da758a6a302b0b8e55b4da573458928e59743139b72821421b. Chain 2 (Bitcoin): anchored in block 958357 (2026-07-17T03:33:42Z), 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/USSF12023604.
      date published: 2026-07-17T03:33:42Z
    audio: Banjo Guzheng Pickin' Girls (天涯海角走一遍)
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 136.173
      additional property: Musical Key
        type: PropertyValue
        value: 2
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.699
      additional property: Energy
        type: PropertyValue
        value: 0.384
      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
  track: Weaving Medley: Busy Weaving / Julianne Johnson / Open Little Hand / Back Step Cindy (纺织忙 / 小开手)

Speechiness
type: PropertyValue
value: 0.031

Acousticness
type: PropertyValue
value: 0.945

Instrumentalness
type: PropertyValue
value: 0

Liveness
type: PropertyValue
value: 0.11

Valence (Positivity)
type: PropertyValue
value: 0.501

Loudness (dB)
type: PropertyValue
value: -7.23

Key Name
type: PropertyValue
value: D

Mode Name
type: PropertyValue
value: Major

Weaving Medley: Busy Weaving / Julianne Johnson / Open Little Hand / Back Step Cindy (纺织忙 / 小开手)
type: MusicRecording
duration: PT3M5S
duration ms: 185946
explicit: false
by artist: Wu Fei
in album: Wu Fei & Abigail Washburn
  type: MusicAlbum
  date published: 2020-04-03
isrc code: USSF12023607
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-20T03:17:45+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x72a42e61e9baf000006170b2ced2c2328a8a4063dbc78d2c08ef2b73d0680558
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 958817
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/958817
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USSF12023607
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-20T03:52:09Z
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 0x72a42e61e9baf000006170b2ced2c2328a8a4063dbc78d2c08ef2b73d0680558. Chain 2 (Bitcoin): anchored in block 958817 (2026-07-20T03:52:09Z), 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/USSF12023607.
  date published: 2026-07-20T03:52:09Z
audio: Weaving Medley: Busy Weaving / Julianne Johnson / Open Little Hand / Back Step Cindy (纺织忙 / 小开手)
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 102.541
  additional property: Musical Key
    type: PropertyValue
    value: 2
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 4
  additional property: Danceability
    type: PropertyValue
    value: 0.375
  additional property: Energy
    type: PropertyValue
    value: 0.395
  additional property: Speechiness
    type: PropertyValue
    value: 0.039
  additional property: Acousticness
    type: PropertyValue
    value: 0.978
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.904
  additional property: Liveness
    type: PropertyValue
    value: 0.087
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.609
  additional property: Loudness (dB)
    type: PropertyValue
    value: -9.589
  additional property: Key Name
    type: PropertyValue
    value: D
  additional property: Mode Name
    type: PropertyValue
    value: Major