Hanna Seirian
type: MusicGroup
popularity: 2
followers: 26
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x688ba218cc62d7769f154016cced8ac1a262504b6db86b1a3b4cd5ee284daf44
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954705
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954705
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/eec91c60-9163-4c35-b8c8-0f81866f9def.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/eec91c60-9163-4c35-b8c8-0f81866f9def.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/eec91c60-9163-4c35-b8c8-0f81866f9def
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-21T13:42:37Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x688ba218cc62d7769f154016cced8ac1a262504b6db86b1a3b4cd5ee284daf44","name":"Hanna Seirian","registered_at":"2026-06-21T12:23:21Z","symbol":"NIM1918526","token_address":"0x14f4cc8d33bdd7a3be112a236f19c1f20c8c7b78","type":"artist","uuid":"eec91c60-9163-4c35-b8c8-0f81866f9def"}
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 0x688ba218cc62d7769f154016cced8ac1a262504b6db86b1a3b4cd5ee284daf44. Chain 2 (Bitcoin): anchored in block 954705 (2026-06-21T13:42:37Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/eec91c60-9163-4c35-b8c8-0f81866f9def.json and https://artists.proofprofile.net/proofs/artist/eec91c60-9163-4c35-b8c8-0f81866f9def.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-21T13:42:37Z
  text: {"copyright_id":"0x688ba218cc62d7769f154016cced8ac1a262504b6db86b1a3b4cd5ee284daf44","name":"Hanna Seirian","registered_at":"2026-06-21T12:23:21Z","symbol":"NIM1918526","token_address":"0x14f4cc8d33bdd7a3be112a236f19c1f20c8c7b78","type":"artist","uuid":"eec91c60-9163-4c35-b8c8-0f81866f9def"}
album: Cysur
  type: MusicAlbum
  date published: 2025-10-03
  track: Cysur
    type: MusicRecording
    duration: PT3M51S
    duration ms: 231374
    explicit: false
    by artist: Hanna Seirian
    in album: Cysur
      type: MusicAlbum
      date published: 2025-10-03
    isrc code: GBVTT5800001
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-20T10:53:49+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x2ee82e0219aa450155a01e41322d608fa7cd10197789974d563f0c39117c4e55
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958870
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958870
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBVTT5800001
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-20T13:55:26Z
    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 0x2ee82e0219aa450155a01e41322d608fa7cd10197789974d563f0c39117c4e55. Chain 2 (Bitcoin): anchored in block 958870 (2026-07-20T13:55:26Z), 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/GBVTT5800001.
      date published: 2026-07-20T13:55:26Z
    audio: Cysur
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 160.444
      additional property: Musical Key
        type: PropertyValue
        value: 8
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 3
      additional property: Danceability
        type: PropertyValue
        value: 0.264
      additional property: Energy
        type: PropertyValue
        value: 0.337
      additional property: Speechiness
        type: PropertyValue
        value: 0.03
      additional property: Acousticness
        type: PropertyValue
        value: 0.598
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.101
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.158
      additional property: Loudness (dB)
        type: PropertyValue
        value: -6.85
      additional property: Key Name
        type: PropertyValue
        value: Ab
      additional property: Mode Name
        type: PropertyValue
        value: Major