九零
type: MusicGroup
popularity: 12
followers: 19
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xd682343ffef7dfb1ca3497ffa79bbf3b05f1401395c8460763c806a248963498
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953736
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953736
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/98b36abb-71af-4542-b2eb-c1cc8fe4defe.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/98b36abb-71af-4542-b2eb-c1cc8fe4defe.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/98b36abb-71af-4542-b2eb-c1cc8fe4defe
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-15T03:21:19Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xd682343ffef7dfb1ca3497ffa79bbf3b05f1401395c8460763c806a248963498","name":"九零","registered_at":"2026-06-14T20:32:58Z","symbol":"NIM0568566","token_address":"0x9e1c49700c883ad14899984ab5966c90a241875c","type":"artist","uuid":"98b36abb-71af-4542-b2eb-c1cc8fe4defe"}
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 0xd682343ffef7dfb1ca3497ffa79bbf3b05f1401395c8460763c806a248963498. Chain 2 (Bitcoin): anchored in block 953736 (2026-06-15T03:21:19Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/98b36abb-71af-4542-b2eb-c1cc8fe4defe.json and https://artists.proofprofile.net/proofs/artist/98b36abb-71af-4542-b2eb-c1cc8fe4defe.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
  date published: 2026-06-15T03:21:19Z
  text: {"copyright_id":"0xd682343ffef7dfb1ca3497ffa79bbf3b05f1401395c8460763c806a248963498","name":"九零","registered_at":"2026-06-14T20:32:58Z","symbol":"NIM0568566","token_address":"0x9e1c49700c883ad14899984ab5966c90a241875c","type":"artist","uuid":"98b36abb-71af-4542-b2eb-c1cc8fe4defe"}
album: Extremespeed
  type: MusicAlbum
  date published: 2023-05-05
album: Confused Song
  type: MusicAlbum
  date published: 2023-05-11
album: 渴望
  type: MusicAlbum
  date published: 2023-06-17
album: 江湖遠
  type: MusicAlbum
  date published: 2025-05-29
track: 痴情的人总被无情的伤 - Dj九零版
  type: MusicRecording
  duration: PT3M15S
  duration ms: 195000
  explicit: false
  by artist: 夏婉安
  by artist: 九零
  in album: 痴情的人总被无情的伤
    type: MusicAlbum
    date published: 2024-05-06
  genre: mandopop
  genre: c-pop
  genre: gufeng
  isrc code: FRX452448521
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-29T12:07:36+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x7d21f64db6b36544af3c5cb972c3fd4fa7147f6e4885f18b454de7d73f25f3e9
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 960105
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/960105
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRX452448521
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-29T12:35:17Z
  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 0x7d21f64db6b36544af3c5cb972c3fd4fa7147f6e4885f18b454de7d73f25f3e9. Chain 2 (Bitcoin): anchored in block 960105 (2026-07-29T12:35:17Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRX452448521 — a six-check JSON result.
    date published: 2026-07-29T12:35:17Z
  audio: 痴情的人总被无情的伤 - Dj九零版
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 137.06
    additional property: Musical Key
      type: PropertyValue
      value: 11
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 1
    additional property: Time Signature
      type: PropertyValue
      value: 5
    additional property: Danceability
      type: PropertyValue
      value: 0.806
    additional property: Energy
      type: PropertyValue
      value: 0.924
    additional property: Speechiness
      type: PropertyValue
      value: 0.031
    additional property: Acousticness
      type: PropertyValue
      value: 0.366
    additional property: Instrumentalness
      type: PropertyValue
      value: 0
    additional property: Liveness
      type: PropertyValue
      value: 0.264
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.947
    additional property: Loudness (dB)
      type: PropertyValue
      value: -7.226
    additional property: Key Name
      type: PropertyValue
      value: B
    additional property: Mode Name
      type: PropertyValue
      value: Major
track: 爱过了伤过了 - Dj九零版
  type: MusicRecording
  duration: PT2M52S
  duration ms: 172800
  explicit: false
  by artist: 夏婉安
  by artist: 九零
  in album: 爱过了伤过了 (DJ九零版)
    type: MusicAlbum
    date published: 2024-02-10
  genre: mandopop
  genre: c-pop
  genre: gufeng
  isrc code: FR2X42477346
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-06-09T00:39:42+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x60986d541ed79acf31fe36b5d945a6a9f9db184201b44d13fa456d0b7e7c236d
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 953528
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/953528
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FR2X42477346
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-06-13T15:41:10Z
  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 0x60986d541ed79acf31fe36b5d945a6a9f9db184201b44d13fa456d0b7e7c236d. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FR2X42477346 — a six-check JSON result.
    date published: 2026-06-13T15:41:10Z
  audio: 爱过了伤过了 - Dj九零版
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 134.997
    additional property: Musical Key
      type: PropertyValue
      value: 5
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 0
    additional property: Time Signature
      type: PropertyValue
      value: 5
    additional property: Danceability
      type: PropertyValue
      value: 0.808
    additional property: Energy
      type: PropertyValue
      value: 0.884
    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

Speechiness
type: PropertyValue
value: 0.034

Acousticness
type: PropertyValue
value: 0.118

Instrumentalness
type: PropertyValue
value: 0.001

Liveness
type: PropertyValue
value: 0.365

Valence (Positivity)
type: PropertyValue
value: 0.961

Loudness (dB)
type: PropertyValue
value: -8.241

Key Name
type: PropertyValue
value: F

Mode Name
type: PropertyValue
value: Minor