Александр Штефанов
type: MusicGroup
popularity: 7
followers: 24
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x4393cec4d6558c90543d183a10c3bcc63d5166c74e64720447b1958fd6e61823
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954043
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954043
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/3f5f13c1-d08b-4ee3-a889-80b5812b2181.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/3f5f13c1-d08b-4ee3-a889-80b5812b2181.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/3f5f13c1-d08b-4ee3-a889-80b5812b2181
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T04:15:20Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x4393cec4d6558c90543d183a10c3bcc63d5166c74e64720447b1958fd6e61823","name":"Александр Штефанов","registered_at":"2026-06-16T11:36:41Z","symbol":"NIM1039731","token_address":"0x6ef76265df1b178ae1ef3e4b4e1aec510bc60e32","type":"artist","uuid":"3f5f13c1-d08b-4ee3-a889-80b5812b2181"}
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 0x4393cec4d6558c90543d183a10c3bcc63d5166c74e64720447b1958fd6e61823. Chain 2 (Bitcoin): anchored in block 954043 (2026-06-17T04:15:20Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/3f5f13c1-d08b-4ee3-a889-80b5812b2181.json and https://artists.proofprofile.net/proofs/artist/3f5f13c1-d08b-4ee3-a889-80b5812b2181.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T04:15:20Z
  text: {"copyright_id":"0x4393cec4d6558c90543d183a10c3bcc63d5166c74e64720447b1958fd6e61823","name":"Александр Штефанов","registered_at":"2026-06-16T11:36:41Z","symbol":"NIM1039731","token_address":"0x6ef76265df1b178ae1ef3e4b4e1aec510bc60e32","type":"artist","uuid":"3f5f13c1-d08b-4ee3-a889-80b5812b2181"}
track: Золотые наручники

Золотые наручники
type: MusicRecording
duration: PT6M7S
duration ms: 367505
explicit: false
by artist: Ежемесячные
by artist: STIV4TRAP
by artist: Александр Штефанов
in album: Короли Абстракта VI - Мультивселенная ЕЖЕ
  type: MusicAlbum
  date published: 2025-02-21
isrc code: FR2X42545160
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-11T03:03:02+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xa67ccecadeeb24cf0e44ed09c388209e5799a36e72eec281af8e1f8eda18a4d6
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953520
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953520
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FR2X42545160
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-13T13:32:09+00:00
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
additional property: ProofProfileEvidenceStatus
  type: PropertyValue
  value: verified-cc-db-prod
additional property: TokenDeploymentConfirmed
  type: PropertyValue
  value: true
additional property: ContentHash
additional property: BitcoinBlock
  type: PropertyValue
  value: 953520
additional property: BitcoinTime
  type: PropertyValue
  value: 2026-06-13T13:32:09+00:00
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa67ccecadeeb24cf0e44ed09c388209e5799a36e72eec281af8e1f8eda18a4d6. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/FR2X42545160.
  date published: 2026-06-13T15:41:10Z
audio: Золотые наручники
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 131.615
  additional property: Musical Key
    type: PropertyValue
    value: 7
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.826
  additional property: Energy
    type: PropertyValue
    value: 0.889
  additional property: Speechiness
    type: PropertyValue
    value: 0.209
  additional property: Acousticness
    type: PropertyValue
    value: 0.097
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.086
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.659
  additional property: Loudness (dB)
    type: PropertyValue
    value: -10.362
  additional property: Key Name
    type: PropertyValue
    value: G
  additional property: Mode Name
    type: PropertyValue
    value: Major