Madame Piano
type: MusicGroup
description: Ljiljana Rančić (Serbian Cyrillic: Љиљана Ранчић), known professionally as Madame Piano, is a Serbian retired jazz/world music singer and songwriter. She was a prominent act on the Serbian music scene
popularity: 12
followers: 532
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x763ff4e4497635a0ad0818d73924a17eaa1d69f08de78b815980748082707490
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953706
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953706
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/7b40bda5-eeff-42b3-8ac4-e64f458ccc58.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/7b40bda5-eeff-42b3-8ac4-e64f458ccc58.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/7b40bda5-eeff-42b3-8ac4-e64f458ccc58
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-14T23:14:49Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x763ff4e4497635a0ad0818d73924a17eaa1d69f08de78b815980748082707490","name":"Madame Piano","registered_at":"2026-06-14T17:28:41Z","symbol":"NIM0524667","token_address":"0x5efe1edcc9121daa72635ae6e68d10045d021a96","type":"artist","uuid":"7b40bda5-eeff-42b3-8ac4-e64f458ccc58"}
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 0x763ff4e4497635a0ad0818d73924a17eaa1d69f08de78b815980748082707490. Chain 2 (Bitcoin): anchored in block 953706 (2026-06-14T23:14:49Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/7b40bda5-eeff-42b3-8ac4-e64f458ccc58.json and https://artists.proofprofile.net/proofs/artist/7b40bda5-eeff-42b3-8ac4-e64f458ccc58.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-14T23:14:49Z
  text: {"copyright_id":"0x763ff4e4497635a0ad0818d73924a17eaa1d69f08de78b815980748082707490","name":"Madame Piano","registered_at":"2026-06-14T17:28:41Z","symbol":"NIM0524667","token_address":"0x5efe1edcc9121daa72635ae6e68d10045d021a96","type":"artist","uuid":"7b40bda5-eeff-42b3-8ac4-e64f458ccc58"}
album: Predeli
  type: MusicAlbum
  date published: 1997-07-25
album: Zemlja čuda
  type: MusicAlbum
  date published: 2001-01-01
album: Zemlja cuda
  type: MusicAlbum
  date published: 2001-01-01
album: Price iz davnina
  type: MusicAlbum
  date published: 2002-01-01
album: Da tebe nema
  type: MusicAlbum
  date published: 2022-03-09