karwa
type: MusicGroup
popularity: 3
followers: 216
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x9b5c510679d3e8ead25ea95fb471291669120b834878c729f9d6776131b3c3c4
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953899
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953899
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/10dc2552-e8f9-479f-9404-96be6c566f86.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/10dc2552-e8f9-479f-9404-96be6c566f86.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/10dc2552-e8f9-479f-9404-96be6c566f86
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T06:37:25Z
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 0x9b5c510679d3e8ead25ea95fb471291669120b834878c729f9d6776131b3c3c4. Chain 2 (Bitcoin): anchored in block 953899 (2026-06-16T06:37:25Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/10dc2552-e8f9-479f-9404-96be6c566f86.json and https://artists.proofprofile.net/proofs/artist/10dc2552-e8f9-479f-9404-96be6c566f86.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-16T06:37:25Z
album: Lockdown 2020
  type: MusicAlbum
  date published: 2020-06-19
album: Lockdown 2020
  type: MusicAlbum
  date published: 2020-06-19
album: 97th Time (Remastered)
  type: MusicAlbum
  date published: 2020-06-25
  track: 97th Time - Remastered
    type: MusicRecording
    duration: PT2M17S
    duration ms: 137485
    explicit: false
    by artist: karwa
    in album: 97th Time (Remastered)
      type: MusicAlbum
      date published: 2020-06-25
    isrc code: SE6I32024410
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-21T04:34:25+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x34d7289c280a2b345c682976cebce5ef01aea59538330436689a369c626ccd73
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958969
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958969
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/SE6I32024410
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-21T04:58:13Z
    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 0x34d7289c280a2b345c682976cebce5ef01aea59538330436689a369c626ccd73. Chain 2 (Bitcoin): anchored in block 958969 (2026-07-21T04:58:13Z), 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/SE6I32024410.
      date published: 2026-07-21T04:58:13Z
    audio: 97th Time - Remastered
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 188.958
      additional property: Musical Key
        type: PropertyValue
        value: 9
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.358
      additional property: Energy
        type: PropertyValue
        value: 0.122
      additional property: Speechiness
        type: PropertyValue
        value: 0.042
      additional property: Acousticness
        type: PropertyValue
        value: 0.864
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.133
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.347
      additional property: Loudness (dB)
        type: PropertyValue
        value: -14.87
      additional property: Key Name
        type: PropertyValue
        value: A
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: Who Is She
  type: MusicAlbum
  date published: 2020-07-03
album: No Means No
  type: MusicAlbum
  date published: 2020-09-04
album: skies without context
  type: MusicAlbum
  date published: 2020-11-06
album: My Brain Says
  type: MusicAlbum
  date published: 2021-01-21
album: out for a run
  type: MusicAlbum
  date published: 2021-07-30
album: Astromania
  type: MusicAlbum
  date published: 2022-01-07
album: All is Well
  type: MusicAlbum
  date published: 2022-10-08
album: Find Your Rhythm
  type: MusicAlbum
  date published: 2023-12-01
album: Saturn Return
  type: MusicAlbum
  date published: 2024-06-13
album: GIRL CODE
  type: MusicAlbum
  date published: 2025-02-27