Hrysoula Stefanaki
type: MusicGroup
description: Hrysoula Stefanaki (Χρυσούλα Στεφανάκη) is a Greek singer and musician, born in Heraklion, Crete, Greece, best known for her performances with David Nachmias on Greek retro (interwar era) songs such a
popularity: 6
followers: 412
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xe91916082135edf02ac0c601bae042a0ed0435ae7650068f63ae5309acb2df93
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953959
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953959
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/27bff74a-79ea-4d3c-8d32-940d25f01431.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/27bff74a-79ea-4d3c-8d32-940d25f01431.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/27bff74a-79ea-4d3c-8d32-940d25f01431
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T14:51:55Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xe91916082135edf02ac0c601bae042a0ed0435ae7650068f63ae5309acb2df93","name":"Hrysoula Stefanaki","registered_at":"2026-06-16T03:21:02Z","symbol":"NIM0921376","token_address":"0xea53ef33aafec77c23fa5a974f1e33cda73c14e8","type":"artist","uuid":"27bff74a-79ea-4d3c-8d32-940d25f01431"}
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 0xe91916082135edf02ac0c601bae042a0ed0435ae7650068f63ae5309acb2df93. Chain 2 (Bitcoin): anchored in block 953959 (2026-06-16T14:51:55Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/27bff74a-79ea-4d3c-8d32-940d25f01431.json and https://artists.proofprofile.net/proofs/artist/27bff74a-79ea-4d3c-8d32-940d25f01431.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-16T14:51:55Z
  text: {"copyright_id":"0xe91916082135edf02ac0c601bae042a0ed0435ae7650068f63ae5309acb2df93","name":"Hrysoula Stefanaki","registered_at":"2026-06-16T03:21:02Z","symbol":"NIM0921376","token_address":"0xea53ef33aafec77c23fa5a974f1e33cda73c14e8","type":"artist","uuid":"27bff74a-79ea-4d3c-8d32-940d25f01431"}
album: For a woman (Για μια γυναίκα)
  type: MusicAlbum
  date published: 2010-12-10