George Katsaros
type: MusicGroup
description: Giorgio Theologitis (20 December 1888 - 22 June 1997), professionally George T. Katsaros, was a Greek-American rebetiko singer, songwriter and guitarist, known for compositions of romantic ballads in
popularity: 2
followers: 185
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x9598cf6bbcb61795ad1449cf8f3b56417226cca847f95da05daa5a9927a00a0c
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954047
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954047
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/4233294f-f4de-4419-95cc-5406bf022b16.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/4233294f-f4de-4419-95cc-5406bf022b16.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/4233294f-f4de-4419-95cc-5406bf022b16
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T04:56:08Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x9598cf6bbcb61795ad1449cf8f3b56417226cca847f95da05daa5a9927a00a0c","name":"George Katsaros","registered_at":"2026-06-16T12:40:22Z","symbol":"NIM1054909","token_address":"0xd87ad094f6685b8eab65e792217e6a9532fa955f","type":"artist","uuid":"4233294f-f4de-4419-95cc-5406bf022b16"}
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 0x9598cf6bbcb61795ad1449cf8f3b56417226cca847f95da05daa5a9927a00a0c. Chain 2 (Bitcoin): anchored in block 954065 (2026-06-17T08:10:43Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/4233294f-f4de-4419-95cc-5406bf022b16.json and https://artists.proofprofile.net/proofs/artist/4233294f-f4de-4419-95cc-5406bf022b16.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T08:10:43Z
  text: {"copyright_id":"0x9598cf6bbcb61795ad1449cf8f3b56417226cca847f95da05daa5a9927a00a0c","name":"George Katsaros","registered_at":"2026-06-16T12:40:22Z","symbol":"NIM1054909","token_address":"0xd87ad094f6685b8eab65e792217e6a9532fa955f","type":"artist","uuid":"4233294f-f4de-4419-95cc-5406bf022b16"}
album: O Stamoulis O Lohias
  type: MusicAlbum
  date published: 1971-04-19
album: No 12
  type: MusicAlbum
  date published: 1990-01-18
album: O Giorgos Katsaros Pezi... Gipsy Kings
  type: MusicAlbum
  date published: 1994-05-04
album: 100 Chryses Melodies Me Saxofono
  type: MusicAlbum
  date published: 2008
album: George Katsaros: Greek Blues in America, Vol. 1
  type: MusicAlbum
  date published: 2018-02-09