一只瓜瓜
type: MusicGroup
genre: chinese r&b
genre: c-pop
popularity: 10
followers: 122
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x123219ac4be915f866dc63fd3fa814ad07737c4c040715ca21b27368d71ea8d1
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953959
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953959
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/27d3dc07-c68d-4a00-9b01-5a14f7508fac.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/27d3dc07-c68d-4a00-9b01-5a14f7508fac.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/27d3dc07-c68d-4a00-9b01-5a14f7508fac
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T14:51:55Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x123219ac4be915f866dc63fd3fa814ad07737c4c040715ca21b27368d71ea8d1","name":"一只瓜瓜","registered_at":"2026-06-16T03:22:38Z","symbol":"NIM0921763","token_address":"0xb3871f36be4155530d0c1fb61908787e795925ce","type":"artist","uuid":"27d3dc07-c68d-4a00-9b01-5a14f7508fac"}
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 0x123219ac4be915f866dc63fd3fa814ad07737c4c040715ca21b27368d71ea8d1. Chain 2 (Bitcoin): anchored in block 953959 (2026-06-16T14:51:55Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/27d3dc07-c68d-4a00-9b01-5a14f7508fac.json and https://artists.proofprofile.net/proofs/artist/27d3dc07-c68d-4a00-9b01-5a14f7508fac.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-16T14:51:55Z
  text: {"copyright_id":"0x123219ac4be915f866dc63fd3fa814ad07737c4c040715ca21b27368d71ea8d1","name":"一只瓜瓜","registered_at":"2026-06-16T03:22:38Z","symbol":"NIM0921763","token_address":"0xb3871f36be4155530d0c1fb61908787e795925ce","type":"artist","uuid":"27d3dc07-c68d-4a00-9b01-5a14f7508fac"}
album: 爱如火 (Emo抒情版)
  type: MusicAlbum
  date published: 2023-02-24
album: 爱如火 (Emo抒情版)
  type: MusicAlbum
  date published: 2023-02-24
album: 如果爱忘了
  type: MusicAlbum
  date published: 2023-03-29
album: 一格格
  type: MusicAlbum
  date published: 2023-03-29
album: 恶作剧
  type: MusicAlbum
  date published: 2023-04-23
album: 爱情转移
  type: MusicAlbum
  date published: 2023-06-28
album: 爱的回归线
  type: MusicAlbum
  date published: 2023-07-17
  track: 爱的回归线
    type: MusicRecording
    duration: PT2M38S
    duration ms: 158823
    explicit: false
    by artist: 一只瓜瓜
    in album: 爱的回归线
      type: MusicAlbum
      date published: 2023-07-17
    genre: chinese r&b
    genre: c-pop
    isrc code: HKG731611874
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-03T17:01:29+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x3c8a4a3b86bad8ccd9d0738fe5ca9067cfcebc08137604e09040d29abcf1573d
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 956545
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/956545
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKG731611874
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-03T19:59:51Z
    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 0x3c8a4a3b86bad8ccd9d0738fe5ca9067cfcebc08137604e09040d29abcf1573d. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/HKG731611874.
      date published: 2026-07-03T19:59:51Z
    audio: 爱的回归线
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 136.029
      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: 0.597
      additional property: Energy
        type: PropertyValue
        value: 0.704
      additional property: Speechiness
        type: PropertyValue
        value: 0.043
      additional property: Acousticness
        type: PropertyValue
        value: 0.635
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.3
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.449
      additional property: Loudness (dB)
        type: PropertyValue
        value: -6.742
      additional property: Key Name
        type: PropertyValue
        value: F#
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: 荒郊的月亮
  type: MusicAlbum
  date published: 2023-07-26
album: 无人知晓的我
  type: MusicAlbum
  date published: 2023-10-14
album: 我不懂什么是爱
  type: MusicAlbum
  date published: 2025-01-18
track: 天黑黑
  type: MusicRecording
  duration: PT3M53S
  duration ms: 233400
  explicit: false
  by artist: 一只瓜瓜
  in album: 「返场―怀旧系列」之「花心」
    type: MusicAlbum
    date published: 2023-04-13
  isrc code: HKD012204551
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-31T07:01:33+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x797f457653295e7b8c90ef5df3c998c5a1c5f1509e9be0491b51ca5a6b666f25
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 960368
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/960368
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKD012204551
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-31T08:26:41Z
  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 0x797f457653295e7b8c90ef5df3c998c5a1c5f1509e9be0491b51ca5a6b666f25. Chain 2 (Bitcoin): anchored in block 960368 (2026-07-31T08:26:41Z), 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/HKD012204551.
    date published: 2026-07-31T08:26:41Z
  audio: 天黑黑
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 117.992
    additional property: Musical Key
    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

Musical Key
type: PropertyValue
value: 8

Mode (Major/Minor)
type: PropertyValue
value: 1

Time Signature
type: PropertyValue
value: 5

Danceability
type: PropertyValue
value: 0.699

Energy
type: PropertyValue
value: 0.239

Speechiness
type: PropertyValue
value: 0.038

Acousticness
type: PropertyValue
value: 0.825

Instrumentalness
type: PropertyValue
value: 0

Liveness
type: PropertyValue
value: 0.362

Valence (Positivity)
type: PropertyValue
value: 0.327

Loudness (dB)
type: PropertyValue
value: -15.814

Key Name
type: PropertyValue
value: Ab

Mode Name
type: PropertyValue
value: Major