Giannis Gerontas
type: MusicGroup
genre: laïko
description: Giannis Gerontas (born 23 January 1962) is a Greek weightlifter. He competed in the men's heavyweight II event at the 1984 Summer Olympics. References Category:1962 births Category:Living people Cat
popularity: 2
followers: 157
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xe969d4bbc1a5356e451529d1e0b6d4cc81d40f21ec48c4f854259946cf327f1b
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954603
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954603
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/c291bb71-7ca3-4bf3-be6e-da29056955af.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/c291bb71-7ca3-4bf3-be6e-da29056955af.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/c291bb71-7ca3-4bf3-be6e-da29056955af
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-20T21:47:54Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xe969d4bbc1a5356e451529d1e0b6d4cc81d40f21ec48c4f854259946cf327f1b","name":"Giannis Gerontas","registered_at":"2026-06-20T20:02:00Z","symbol":"NIM1700552","token_address":"0x122b13ff4e96e2454a8cbf7596d8e4aa386c4c63","type":"artist","uuid":"c291bb71-7ca3-4bf3-be6e-da29056955af"}
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 0xe969d4bbc1a5356e451529d1e0b6d4cc81d40f21ec48c4f854259946cf327f1b. Chain 2 (Bitcoin): anchored in block 954603 (2026-06-20T21:47:54Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/c291bb71-7ca3-4bf3-be6e-da29056955af.json and https://artists.proofprofile.net/proofs/artist/c291bb71-7ca3-4bf3-be6e-da29056955af.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-20T21:47:54Z
  text: {"copyright_id":"0xe969d4bbc1a5356e451529d1e0b6d4cc81d40f21ec48c4f854259946cf327f1b","name":"Giannis Gerontas","registered_at":"2026-06-20T20:02:00Z","symbol":"NIM1700552","token_address":"0x122b13ff4e96e2454a8cbf7596d8e4aa386c4c63","type":"artist","uuid":"c291bb71-7ca3-4bf3-be6e-da29056955af"}
album: Kaneis Pos De Me Ksereis
  type: MusicAlbum
  date published: 2021-02-04
album: Ena Pino Kai Methao / Ki Epina Ki Epina / Einai Treli Afti I Gynaika / Mia Kai Misi / Pigene Stin Gonia Na Deis An Erhomai (Live)
  type: MusicAlbum
  date published: 2023-02-06
album: Kai Pou Na 'Kseres
  type: MusicAlbum
  date published: 2024-03-01