Danai Stratigopoulou
type: MusicGroup
genre: entehno
description: Danai Stratigopoulou (; 8 February 1913 – 18 January 2009) was a Greek singer, writer, and university academic. She acquired recognition in the literary world for translating the works of the Chilean
popularity: 3
followers: 509
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x35b0a1469be1663cf9f0f38958bd47efe1d7174ba8431b1e9dea1b093233cec1
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954533
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954533
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/a7510dce-dd57-4fe8-967e-7dfdf6ef6ba6.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/a7510dce-dd57-4fe8-967e-7dfdf6ef6ba6.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/a7510dce-dd57-4fe8-967e-7dfdf6ef6ba6
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-20T08:57:02Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x35b0a1469be1663cf9f0f38958bd47efe1d7174ba8431b1e9dea1b093233cec1","name":"Danai Stratigopoulou","registered_at":"2026-06-20T08:11:05Z","symbol":"NIM1562732","token_address":"0xce34c74c52043b8f525aab83c45974f76bf58e6d","type":"artist","uuid":"a7510dce-dd57-4fe8-967e-7dfdf6ef6ba6"}
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 0x35b0a1469be1663cf9f0f38958bd47efe1d7174ba8431b1e9dea1b093233cec1. Chain 2 (Bitcoin): anchored in block 954533 (2026-06-20T08:57:02Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/a7510dce-dd57-4fe8-967e-7dfdf6ef6ba6.json and https://artists.proofprofile.net/proofs/artist/a7510dce-dd57-4fe8-967e-7dfdf6ef6ba6.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-20T08:57:02Z
  text: {"copyright_id":"0x35b0a1469be1663cf9f0f38958bd47efe1d7174ba8431b1e9dea1b093233cec1","name":"Danai Stratigopoulou","registered_at":"2026-06-20T08:11:05Z","symbol":"NIM1562732","token_address":"0xce34c74c52043b8f525aab83c45974f76bf58e6d","type":"artist","uuid":"a7510dce-dd57-4fe8-967e-7dfdf6ef6ba6"}
album: Ta Romantika Tou Grammofonou, Νο. 1
  type: MusicAlbum
  date published: 1930-01-01
album: Ta Romantika Tou Grammofonou, No. 9
  type: MusicAlbum
  date published: 1950-01-01
album: I Danai Sta Pio Omorfa Tragoudia Tou Attik
  type: MusicAlbum
  date published: 1982