Hossam Hosny
type: MusicGroup
genre: egyptian hip hop
genre: egyptian pop
popularity: 24
followers: 4323
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x41e77b76a3bb8580d58351d71c8cce69d6060ce5fdcb0f0c3ef44646c41de132
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953407
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953407
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/965e6e68-4028-43bc-8f3a-a4f02c5cce57.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/965e6e68-4028-43bc-8f3a-a4f02c5cce57.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/965e6e68-4028-43bc-8f3a-a4f02c5cce57
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-12T19:24:56Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x41e77b76a3bb8580d58351d71c8cce69d6060ce5fdcb0f0c3ef44646c41de132","name":"Hossam Hosny","registered_at":"2026-06-12T05:03:56Z","symbol":"NIM0195045","token_address":"0x1b1b50b4a72563a914ed2ef20a0989af821afea5","type":"artist","uuid":"965e6e68-4028-43bc-8f3a-a4f02c5cce57"}
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 0x41e77b76a3bb8580d58351d71c8cce69d6060ce5fdcb0f0c3ef44646c41de132. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/965e6e68-4028-43bc-8f3a-a4f02c5cce57.json and https://artists.proofprofile.net/proofs/artist/965e6e68-4028-43bc-8f3a-a4f02c5cce57.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-12T19:24:56Z
  text: {"copyright_id":"0x41e77b76a3bb8580d58351d71c8cce69d6060ce5fdcb0f0c3ef44646c41de132","name":"Hossam Hosny","registered_at":"2026-06-12T05:03:56Z","symbol":"NIM0195045","token_address":"0x1b1b50b4a72563a914ed2ef20a0989af821afea5","type":"artist","uuid":"965e6e68-4028-43bc-8f3a-a4f02c5cce57"}
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