K8103
type: MusicGroup
popularity: 3
followers: 4
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xf5912f02f3d9910730a94abc24dd1f858ccdad2d7aa48ab9ef071727e9779ecd
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954513
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954513
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/9eea78df-b5b7-4bb7-ad6d-3ce6bc2a1f0e.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/9eea78df-b5b7-4bb7-ad6d-3ce6bc2a1f0e.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/9eea78df-b5b7-4bb7-ad6d-3ce6bc2a1f0e
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-20T06:31:18Z
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 0xf5912f02f3d9910730a94abc24dd1f858ccdad2d7aa48ab9ef071727e9779ecd. Chain 2 (Bitcoin): anchored in block 954513 (2026-06-20T06:31:18Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/9eea78df-b5b7-4bb7-ad6d-3ce6bc2a1f0e.json and https://artists.proofprofile.net/proofs/artist/9eea78df-b5b7-4bb7-ad6d-3ce6bc2a1f0e.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-20T06:31:18Z
album: Bất Tận (Beat)
  type: MusicAlbum
  date published: 2024-05-29
  track: Bất Tận (Beat)
    type: MusicRecording
    duration: PT3M38S
    duration ms: 218628
    explicit: false
    by artist: K8103
    in album: Bất Tận (Beat)
      type: MusicAlbum
      date published: 2024-05-29
    isrc code: QZYFZ2444021
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-15T13:39:36+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x5ccbd391ed64ad93ae36999dbac2ae3e8e9c555f2809d0014d303cf682208770
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958163
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958163
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZYFZ2444021
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-15T14:38:07Z
    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 0x5ccbd391ed64ad93ae36999dbac2ae3e8e9c555f2809d0014d303cf682208770. Chain 2 (Bitcoin): anchored in block 958163 (2026-07-15T14:38:07Z), 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/QZYFZ2444021.
      date published: 2026-07-15T14:38:07Z
    audio: Bất Tận (Beat)
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 139.999
      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: 0.563
      additional property: Energy
        type: PropertyValue
        value: 0.837
      additional property: Speechiness
        type: PropertyValue
        value: 0.029
      additional property: Acousticness
        type: PropertyValue
        value: 0.002
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.827
      additional property: Liveness
        type: PropertyValue
        value: 0.073
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.599
      additional property: Loudness (dB)
        type: PropertyValue
        value: -8.471
      additional property: Key Name
        type: PropertyValue
        value: F#
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: Tình Ca
  type: MusicAlbum
  date published: 2025-02-25