Doron Sheffer
type: MusicGroup
description: Doron Sheffer (; born 12 March 1972) is an Israeli former professional basketball player. He spent most of his club career playing with Maccabi Tel Aviv. During his playing career he played at the poi
popularity: 2
followers: 64
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x16b25d3a4e3baeb3c487f4c0c94be09d4eaa43e9def1b7d9469707f5929fc5af
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954058
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954058
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/44ad5f0a-6413-4eba-97be-e6881f1f413a.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/44ad5f0a-6413-4eba-97be-e6881f1f413a.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/44ad5f0a-6413-4eba-97be-e6881f1f413a
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T06:34:31Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x16b25d3a4e3baeb3c487f4c0c94be09d4eaa43e9def1b7d9469707f5929fc5af","name":"Doron Sheffer","registered_at":"2026-06-16T13:36:10Z","symbol":"NIM1068209","token_address":"0xd5f9164b09eaa133e4710106a7b6dd11817f350c","type":"artist","uuid":"44ad5f0a-6413-4eba-97be-e6881f1f413a"}
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 0x16b25d3a4e3baeb3c487f4c0c94be09d4eaa43e9def1b7d9469707f5929fc5af. Chain 2 (Bitcoin): anchored in block 954058 (2026-06-17T06:34:31Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/44ad5f0a-6413-4eba-97be-e6881f1f413a.json and https://artists.proofprofile.net/proofs/artist/44ad5f0a-6413-4eba-97be-e6881f1f413a.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T06:34:31Z
  text: {"copyright_id":"0x16b25d3a4e3baeb3c487f4c0c94be09d4eaa43e9def1b7d9469707f5929fc5af","name":"Doron Sheffer","registered_at":"2026-06-16T13:36:10Z","symbol":"NIM1068209","token_address":"0xd5f9164b09eaa133e4710106a7b6dd11817f350c","type":"artist","uuid":"44ad5f0a-6413-4eba-97be-e6881f1f413a"}
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