Andreea Stefan
type: MusicGroup
popularity: 3
followers: 89
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x9e23f3ef5767c36738b67c97c82f2391c7a36570a03688c681ffdf1e86dcaeb7
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954647
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954647
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/d7970149-a5b1-484f-b41d-ca2b3afc3c52.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/d7970149-a5b1-484f-b41d-ca2b3afc3c52.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/d7970149-a5b1-484f-b41d-ca2b3afc3c52
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-21T04:36:58Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x9e23f3ef5767c36738b67c97c82f2391c7a36570a03688c681ffdf1e86dcaeb7","name":"Andreea Stefan","registered_at":"2026-06-21T03:15:53Z","symbol":"NIM1802961","token_address":"0xd9246cf1d2cf328670012652a85a677d8158f898","type":"artist","uuid":"d7970149-a5b1-484f-b41d-ca2b3afc3c52"}
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 0x9e23f3ef5767c36738b67c97c82f2391c7a36570a03688c681ffdf1e86dcaeb7. Chain 2 (Bitcoin): anchored in block 954647 (2026-06-21T04:36:58Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/d7970149-a5b1-484f-b41d-ca2b3afc3c52.json and https://artists.proofprofile.net/proofs/artist/d7970149-a5b1-484f-b41d-ca2b3afc3c52.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-21T04:36:58Z
  text: {"copyright_id":"0x9e23f3ef5767c36738b67c97c82f2391c7a36570a03688c681ffdf1e86dcaeb7","name":"Andreea Stefan","registered_at":"2026-06-21T03:15:53Z","symbol":"NIM1802961","token_address":"0xd9246cf1d2cf328670012652a85a677d8158f898","type":"artist","uuid":"d7970149-a5b1-484f-b41d-ca2b3afc3c52"}
album: SiN
  type: MusicAlbum
  date published: 2023-05-25
album: SINNER
  type: MusicAlbum
  date published: 2023-09-22
album: Waiting
  type: MusicAlbum
  date published: 2024-05-10
album: It's Difficult
  type: MusicAlbum
  date published: 2024-07-05
  track: It's Difficult
    type: MusicRecording
    duration: PT2M42S
    duration ms: 162909
    explicit: false
    by artist: Andreea Stefan
    in album: It's Difficult
      type: MusicAlbum
      date published: 2024-07-05
    isrc code: QZNWX2448954
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-21T12:55:19+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xa44c97b8edf528af4703ab7ca26d95101783eea739f288db611f9a0f77695d04
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 959008
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/959008
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZNWX2448954
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-21T15:57:59Z
    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 0xa44c97b8edf528af4703ab7ca26d95101783eea739f288db611f9a0f77695d04. Chain 2 (Bitcoin): anchored in block 959008 (2026-07-21T15:57:59Z), 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/QZNWX2448954.
      date published: 2026-07-21T15:57:59Z
    audio: It's Difficult
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 82.192
      additional property: Musical Key
        type: PropertyValue
        value: 11
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.531
      additional property: Energy
        type: PropertyValue
        value: 0.708
      additional property: Speechiness
        type: PropertyValue
        value: 0.101
      additional property: Acousticness
        type: PropertyValue
        value: 0.745
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.265
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.427
      additional property: Loudness (dB)
        type: PropertyValue
        value: -7.551
      additional property: Key Name
        type: PropertyValue
        value: B
      additional property: Mode Name
        type: PropertyValue
        value: Minor
album: Bro
  type: MusicAlbum
  date published: 2024-08-20
album: Our Song
  type: MusicAlbum
  date published: 2024-08-29