Nina Dobrev
type: MusicGroup
description: Nikolina Kamenova DobrevaГимназистка за 12 години. Нина Добрев, която е готова да прави неочакваното, Свободна Европа (Bulgarian office of RFE/RL), January 9, 2024 (; born January 9, 1989), known prof
popularity: 3
followers: 4650
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x72f923872dc9733f5dc3fbfd13241a6d3f3f3293750f3bf82a2bc8feb75f4bed
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954342
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954342
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/90ba6d9a-1438-4bea-ba7a-cc5dfa79c33c.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/90ba6d9a-1438-4bea-ba7a-cc5dfa79c33c.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/90ba6d9a-1438-4bea-ba7a-cc5dfa79c33c
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-19T03:22:39Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x72f923872dc9733f5dc3fbfd13241a6d3f3f3293750f3bf82a2bc8feb75f4bed","name":"Nina Dobrev","registered_at":"2026-06-17T16:10:54Z","symbol":"NIM1448596","token_address":"0x6c885f0ab5e9c5302a09acc6cb63b2ddbcae5e07","type":"artist","uuid":"90ba6d9a-1438-4bea-ba7a-cc5dfa79c33c"}
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 0x72f923872dc9733f5dc3fbfd13241a6d3f3f3293750f3bf82a2bc8feb75f4bed. Chain 2 (Bitcoin): anchored in block 954342 (2026-06-19T03:22:39Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/90ba6d9a-1438-4bea-ba7a-cc5dfa79c33c.json and https://artists.proofprofile.net/proofs/artist/90ba6d9a-1438-4bea-ba7a-cc5dfa79c33c.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-19T03:22:39Z
  text: {"copyright_id":"0x72f923872dc9733f5dc3fbfd13241a6d3f3f3293750f3bf82a2bc8feb75f4bed","name":"Nina Dobrev","registered_at":"2026-06-17T16:10:54Z","symbol":"NIM1448596","token_address":"0x6c885f0ab5e9c5302a09acc6cb63b2ddbcae5e07","type":"artist","uuid":"90ba6d9a-1438-4bea-ba7a-cc5dfa79c33c"}
album: S.P.F.
  type: MusicAlbum
  date published: 2012-07-03
  track: S.P.F.
    type: MusicRecording
    duration: PT2M44S
    duration ms: 164809
    explicit: false
    by artist: Nina Dobrev
    in album: S.P.F.
      type: MusicAlbum
      date published: 2012-07-03
    isrc code: TCABH1259861
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-17T04:26:50+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x41ac36ea0a6aa6d6d3480d8f0b20444d2bd1052791731c5c611b86a4602461f2
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958363
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958363
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCABH1259861
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-17T04:34:46Z
    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 0x41ac36ea0a6aa6d6d3480d8f0b20444d2bd1052791731c5c611b86a4602461f2. Chain 2 (Bitcoin): anchored in block 958363 (2026-07-17T04:34:46Z), 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/TCABH1259861.
      date published: 2026-07-17T04:34:46Z
    audio: S.P.F.
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 150.027
      additional property: Musical Key
        type: PropertyValue
        value: 1
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
        type: PropertyValue
        value: 3
      additional property: Danceability
        type: PropertyValue
        value: 0.59
      additional property: Energy
        type: PropertyValue
        value: 0.728
      additional property: Speechiness
        type: PropertyValue
        value: 0.343
      additional property: Acousticness
        type: PropertyValue
        value: 0.141
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.858
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.672
      additional property: Loudness (dB)
        type: PropertyValue
        value: -4.972
      additional property: Key Name
        type: PropertyValue
        value: C#
      additional property: Mode Name
        type: PropertyValue
        value: Minor