Ana Kahan
type: MusicGroup
popularity: 5
followers: 300
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xd634598bc4a5faec98c8b921ed0813818777b32ee73d5eecc823fa5faf61879a
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953988
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953988
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/2e56c280-a869-49ee-af24-bcbd9d06b3de.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/2e56c280-a869-49ee-af24-bcbd9d06b3de.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/2e56c280-a869-49ee-af24-bcbd9d06b3de
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T18:23:32Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xd634598bc4a5faec98c8b921ed0813818777b32ee73d5eecc823fa5faf61879a","name":"Ana Kahan","registered_at":"2026-06-16T05:41:09Z","symbol":"NIM0954859","token_address":"0xe2369aa0edace385a2a4f303879d2dea443608ba","type":"artist","uuid":"2e56c280-a869-49ee-af24-bcbd9d06b3de"}
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 0xd634598bc4a5faec98c8b921ed0813818777b32ee73d5eecc823fa5faf61879a. Chain 2 (Bitcoin): anchored in block 954014 (2026-06-16T22:46:20Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/2e56c280-a869-49ee-af24-bcbd9d06b3de.json and https://artists.proofprofile.net/proofs/artist/2e56c280-a869-49ee-af24-bcbd9d06b3de.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-16T22:46:20Z
  text: {"copyright_id":"0xd634598bc4a5faec98c8b921ed0813818777b32ee73d5eecc823fa5faf61879a","name":"Ana Kahan","registered_at":"2026-06-16T05:41:09Z","symbol":"NIM0954859","token_address":"0xe2369aa0edace385a2a4f303879d2dea443608ba","type":"artist","uuid":"2e56c280-a869-49ee-af24-bcbd9d06b3de"}
album: End of the Day
  type: MusicAlbum
  date published: 2019-06-14
album: Nightmares
  type: MusicAlbum
  date published: 2019-09-13
album: hotel
  type: MusicAlbum
  date published: 2025-04-04
  track: hotel
    type: MusicRecording
    duration: PT2M49S
    duration ms: 169272
    explicit: false
    by artist: Ana Kahan
    in album: hotel
      type: MusicAlbum
      date published: 2025-04-04
    isrc code: QZVEM2531786
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-12T22:53:01+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x4a6257824774841606a5fa1a23a5e0c70eaeb445050c4c108a8aa67357dd884b
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 957770
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/957770
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZVEM2531786
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-12T23:17:00Z
    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 0x4a6257824774841606a5fa1a23a5e0c70eaeb445050c4c108a8aa67357dd884b. Chain 2 (Bitcoin): anchored in block 957770 (2026-07-12T23:17:00Z), 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/QZVEM2531786.
      date published: 2026-07-12T23:17:00Z
    audio: hotel
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 94.974
      additional property: Musical Key
        type: PropertyValue
        value: 11
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.613
      additional property: Energy
        type: PropertyValue
        value: 0.521
      additional property: Speechiness
        type: PropertyValue
        value: 0.06
      additional property: Acousticness
        type: PropertyValue
        value: 0.434
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.099
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.221
      additional property: Loudness (dB)
        type: PropertyValue
        value: -6.171
      additional property: Key Name
        type: PropertyValue
        value: B
      additional property: Mode Name
        type: PropertyValue
        value: Major