Darío Sztajnszrajber
type: MusicGroup
genre: tango
description: Darío Gabriel Sztajnszrajber (; born 16 June 1968), also known as Darío Szeta, is an Argentine philosopher, essayist, teacher, and television presenter. Personal life Sztajnszrajber was born in Bue
popularity: 11
followers: 2589
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xb75f1fc829227b11d17a38a2fcd2e41cb354f950394561c4ddeb4fe78ebc9ddd
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953657
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953657
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/4e49dcba-0838-4a74-b014-7830e043294d.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/4e49dcba-0838-4a74-b014-7830e043294d.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/4e49dcba-0838-4a74-b014-7830e043294d
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-14T16:43:25Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xb75f1fc829227b11d17a38a2fcd2e41cb354f950394561c4ddeb4fe78ebc9ddd","name":"Darío Sztajnszrajber","registered_at":"2026-06-14T12:38:08Z","symbol":"NIM0455314","token_address":"0x8e4a200a3699bcb9402226577f8b8f748a1de3e1","type":"artist","uuid":"4e49dcba-0838-4a74-b014-7830e043294d"}
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 0xb75f1fc829227b11d17a38a2fcd2e41cb354f950394561c4ddeb4fe78ebc9ddd. Chain 2 (Bitcoin): anchored in block 953657 (2026-06-14T16:43:25Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/4e49dcba-0838-4a74-b014-7830e043294d.json and https://artists.proofprofile.net/proofs/artist/4e49dcba-0838-4a74-b014-7830e043294d.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-14T16:43:25Z
  text: {"copyright_id":"0xb75f1fc829227b11d17a38a2fcd2e41cb354f950394561c4ddeb4fe78ebc9ddd","name":"Darío Sztajnszrajber","registered_at":"2026-06-14T12:38:08Z","symbol":"NIM0455314","token_address":"0x8e4a200a3699bcb9402226577f8b8f748a1de3e1","type":"artist","uuid":"4e49dcba-0838-4a74-b014-7830e043294d"}