DEMAFRA
type: MusicGroup
popularity: 11
followers: 99
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x1bc0367b989c2ccd143e9f81a5d5b3b43962eb5bd06c2c1b256e72293cb734f8
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953819
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953819
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/faf87dca-3f3c-47c0-ac94-bd688dc7f45a.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/faf87dca-3f3c-47c0-ac94-bd688dc7f45a.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/faf87dca-3f3c-47c0-ac94-bd688dc7f45a
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-15T18:31:52Z
additional property: OTSCanonicalRecord
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 0x1bc0367b989c2ccd143e9f81a5d5b3b43962eb5bd06c2c1b256e72293cb734f8. Chain 2 (Bitcoin): anchored in block 953819 (2026-06-15T18:31:52Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/faf87dca-3f3c-47c0-ac94-bd688dc7f45a.json and https://artists.proofprofile.net/proofs/artist/faf87dca-3f3c-47c0-ac94-bd688dc7f45a.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-15T18:31:52Z
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album: Про неё
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  date published: 2023-06-15
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  date published: 2024-01-19
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  type: MusicAlbum
  date published: 2024-03-08
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  type: MusicAlbum
  date published: 2024-04-12
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  date published: 2024-06-07
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