Ester Mägi
type: MusicGroup
description: Ester Mägi (10 January 1922 – 14 May 2021) was an Estonian composer. She has been called the "first lady of Estonian music." Education She trained under Mart Saar at the Tallinn Conservatoire, then
popularity: 4
followers: 400
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x9ad1e2270a9421967ebef1a4f0bc10cdca988d89ac909740184485be0287f479
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954553
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954553
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/acb9a992-6376-414c-9097-96c2446d3183.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/acb9a992-6376-414c-9097-96c2446d3183.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/acb9a992-6376-414c-9097-96c2446d3183
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-20T11:51:30Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x9ad1e2270a9421967ebef1a4f0bc10cdca988d89ac909740184485be0287f479","name":"Ester Mägi","registered_at":"2026-06-20T10:06:12Z","symbol":"NIM1587911","token_address":"0x883616a2002f306fb2d46c43e438de4703d75798","type":"artist","uuid":"acb9a992-6376-414c-9097-96c2446d3183"}
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 0x9ad1e2270a9421967ebef1a4f0bc10cdca988d89ac909740184485be0287f479. Chain 2 (Bitcoin): anchored in block 954553 (2026-06-20T11:51:30Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/acb9a992-6376-414c-9097-96c2446d3183.json and https://artists.proofprofile.net/proofs/artist/acb9a992-6376-414c-9097-96c2446d3183.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-20T11:51:30Z
  text: {"copyright_id":"0x9ad1e2270a9421967ebef1a4f0bc10cdca988d89ac909740184485be0287f479","name":"Ester Mägi","registered_at":"2026-06-20T10:06:12Z","symbol":"NIM1587911","token_address":"0x883616a2002f306fb2d46c43e438de4703d75798","type":"artist","uuid":"acb9a992-6376-414c-9097-96c2446d3183"}
album: Magi: Orchestral Music
  type: MusicAlbum
  date published: 2000-01-01
album: Magi: Tree of Song
  type: MusicAlbum
  date published: 2000-01-01
album: Magi: Orchestral Music
  type: MusicAlbum
  date published: 2000-01-01
album: Magi: Tree of Song
  type: MusicAlbum
  date published: 2000-01-01
album: Ester Mägi
  type: MusicAlbum
  date published: 2024-03-29
album: Mägi: Complete Songs for Female Voice
  type: MusicAlbum
  date published: 2024-10-04
album: MÄGI: Trouble Song
  type: MusicAlbum
  date published: 2025-04-25
album: MÄGI: Little Waltz
  type: MusicAlbum
  date published: 2025-05-09
album: The Ancient Kannel
  type: MusicAlbum
  date published: 2025-06-06