Ketrafe
type: MusicGroup
genre: trova
popularity: 7
followers: 1449
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xb3aea4bfc6a5e371ff60e92f147c78a9fae4af8aded82155c807b6540bdaec53
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954065
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954065
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/55fb9349-0e02-4da2-ad16-9a58a7ae7728.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/55fb9349-0e02-4da2-ad16-9a58a7ae7728.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/55fb9349-0e02-4da2-ad16-9a58a7ae7728
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T08:10:43Z
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
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3aea4bfc6a5e371ff60e92f147c78a9fae4af8aded82155c807b6540bdaec53. 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/55fb9349-0e02-4da2-ad16-9a58a7ae7728.json and https://artists.proofprofile.net/proofs/artist/55fb9349-0e02-4da2-ad16-9a58a7ae7728.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T08:11:48Z
album: Nepey Tañi Üñüm Piwke
  type: MusicAlbum
  date published: 2020-08-02
album: Nepey Tañi Üñüm Piwke
  type: MusicAlbum
  date published: 2020-08-02
  track: Wesha Kona
    type: MusicRecording
    duration: PT5M12S
    duration ms: 312215
    explicit: false
    by artist: Ketrafe
    in album: Nepey Tañi Üñüm Piwke
      type: MusicAlbum
      date published: 2020-08-02
    genre: trova
    isrc code: QZTB92498115
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-19T09:31:02+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x77493403e3136e5a293bbe6249be3a393c297ac75da9d3244bee0bd552d2fc1d
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958714
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958714
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZTB92498115
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-19T09:51:44Z
    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 0x77493403e3136e5a293bbe6249be3a393c297ac75da9d3244bee0bd552d2fc1d. Chain 2 (Bitcoin): anchored in block 958714 (2026-07-19T09:51:44Z), 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/QZTB92498115.
      date published: 2026-07-19T09:51:44Z
    audio: Wesha Kona
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 140.05
      additional property: Musical Key
        type: PropertyValue
        value: 4
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.325
      additional property: Energy
        type: PropertyValue
        value: 0.268
      additional property: Speechiness
        type: PropertyValue
        value: 0.033
      additional property: Acousticness
        type: PropertyValue
        value: 0.829
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.084
      additional property: Liveness
        type: PropertyValue
        value: 0.101
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.337
      additional property: Loudness (dB)
        type: PropertyValue
        value: -9.064
      additional property: Key Name
        type: PropertyValue
        value: E
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: Wangelen
  type: MusicAlbum
  date published: 2021-04-16
album: Amulepe Taiñ Weichan
  type: MusicAlbum
  date published: 2021-08-22
album: Amulepe Taiñ Weichan
  type: MusicAlbum
  date published: 2021-08-22