凯枫
type: MusicGroup
genre: gufeng
popularity: 2
followers: 19
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x25af5a786288f2ac5697e6838728a3a340d64ab2dbb46d00f01b2a8352d09d6a
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954742
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954742
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/fe0a2cb0-b082-48cb-8671-a9e2346fc98d.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/fe0a2cb0-b082-48cb-8671-a9e2346fc98d.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/fe0a2cb0-b082-48cb-8671-a9e2346fc98d
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-21T20:46:40Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x25af5a786288f2ac5697e6838728a3a340d64ab2dbb46d00f01b2a8352d09d6a","name":"凯枫","registered_at":"2026-06-21T18:04:15Z","symbol":"NIM1993906","token_address":"0xa702a55f8250d70de15f8aa61a1c26ecd12b309a","type":"artist","uuid":"fe0a2cb0-b082-48cb-8671-a9e2346fc98d"}
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 0x25af5a786288f2ac5697e6838728a3a340d64ab2dbb46d00f01b2a8352d09d6a. Chain 2 (Bitcoin): anchored in block 954742 (2026-06-21T20:46:40Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/fe0a2cb0-b082-48cb-8671-a9e2346fc98d.json and https://artists.proofprofile.net/proofs/artist/fe0a2cb0-b082-48cb-8671-a9e2346fc98d.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-21T20:46:40Z
  text: {"copyright_id":"0x25af5a786288f2ac5697e6838728a3a340d64ab2dbb46d00f01b2a8352d09d6a","name":"凯枫","registered_at":"2026-06-21T18:04:15Z","symbol":"NIM1993906","token_address":"0xa702a55f8250d70de15f8aa61a1c26ecd12b309a","type":"artist","uuid":"fe0a2cb0-b082-48cb-8671-a9e2346fc98d"}
album: 烟雨红尘（古风纯音乐）
  type: MusicAlbum
  date published: 2024-07-27
album: 烟雨江南
  type: MusicAlbum
  date published: 2024-07-27
album: 国风配乐
  type: MusicAlbum
  date published: 2024-09-15
  track: 国风配乐
    type: MusicRecording
    duration: PT3M4S
    duration ms: 184150
    explicit: false
    by artist: 凯枫
    in album: 国风配乐
      type: MusicAlbum
      date published: 2024-09-15
    genre: gufeng
    isrc code: HKD012366486
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-20T21:20:44+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x30d38a545e352a6b7d7382be32c7fb711770b63ed90bfb1d4d48eb10f0f79d55
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958935
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958935
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKD012366486
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-20T22:08:19Z
    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 0x30d38a545e352a6b7d7382be32c7fb711770b63ed90bfb1d4d48eb10f0f79d55. Chain 2 (Bitcoin): anchored in block 958935 (2026-07-20T22:08:19Z), 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/HKD012366486.
      date published: 2026-07-20T22:08:19Z
    audio: 国风配乐
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 128.021
      additional property: Musical Key
        type: PropertyValue
        value: 0
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.769
      additional property: Energy
        type: PropertyValue
        value: 0.327
      additional property: Speechiness
        type: PropertyValue
        value: 0.034
      additional property: Acousticness
        type: PropertyValue
        value: 0.931
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.658
      additional property: Liveness
        type: PropertyValue
        value: 0.114
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.451
      additional property: Loudness (dB)
        type: PropertyValue
        value: -8.719
      additional property: Key Name
        type: PropertyValue
        value: C
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: 山水仙音梦（古风纯音乐）
  type: MusicAlbum
  date published: 2024-10-15
album: 古筝灵音梦
  type: MusicAlbum
  date published: 2024-10-18
album: 国风清韵梦（纯音乐）
  type: MusicAlbum
  date published: 2024-10-18
album: 古风仙音
  type: MusicAlbum
  date published: 2024-11-23
album: 国风仙音
  type: MusicAlbum
  date published: 2024-11-24