Shmuel Barzilai
type: MusicGroup
description: Shmuel Barzilai (; born 3 June 1957) is an Israeli cantor. He is the chief cantor of the Israelitische Kultusgemeinde Wien in Vienna. Biography Shmuel Barzilai was born in Jerusalem. He is a son of S
popularity: 4
followers: 292
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xd8f9f321257dd00849d6b4e95ee26dadda2b076bbcbac9700a0355f2b32487eb
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953864
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953864
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/048572aa-217f-4ce8-af16-4a7a615cf27e.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/048572aa-217f-4ce8-af16-4a7a615cf27e.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/048572aa-217f-4ce8-af16-4a7a615cf27e
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T00:30:31Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xd8f9f321257dd00849d6b4e95ee26dadda2b076bbcbac9700a0355f2b32487eb","name":"Shmuel Barzilai","registered_at":"2026-06-15T15:01:47Z","symbol":"NIM0744949","token_address":"0x0cf28426caf71828a5aac255a61dfe368f6a7a88","type":"artist","uuid":"048572aa-217f-4ce8-af16-4a7a615cf27e"}
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 0xd8f9f321257dd00849d6b4e95ee26dadda2b076bbcbac9700a0355f2b32487eb. Chain 2 (Bitcoin): anchored in block 953864 (2026-06-16T00:30:31Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/048572aa-217f-4ce8-af16-4a7a615cf27e.json and https://artists.proofprofile.net/proofs/artist/048572aa-217f-4ce8-af16-4a7a615cf27e.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-16T00:30:31Z
  text: {"copyright_id":"0xd8f9f321257dd00849d6b4e95ee26dadda2b076bbcbac9700a0355f2b32487eb","name":"Shmuel Barzilai","registered_at":"2026-06-15T15:01:47Z","symbol":"NIM0744949","token_address":"0x0cf28426caf71828a5aac255a61dfe368f6a7a88","type":"artist","uuid":"048572aa-217f-4ce8-af16-4a7a615cf27e"}
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