Leo Fall
type: MusicGroup
description: thumb|215px|Leo Fall, 1915; by Rudolf Dührkoop Leopold Fall (2 February 187316 September 1925) was an Austrian Kapellmeister and composer of operettas. Life Born in Olmütz, Leo (or Leopold) Fall was
popularity: 6
followers: 363
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xb19a6872e8033fae0b65197a05ac1bd80fe849b156b9e34fdff5b88e9ea00683
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953947
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953947
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/22fad95b-8a2f-4646-aa43-90ee1faaa5a1.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/22fad95b-8a2f-4646-aa43-90ee1faaa5a1.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/22fad95b-8a2f-4646-aa43-90ee1faaa5a1
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T13:14:26Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xb19a6872e8033fae0b65197a05ac1bd80fe849b156b9e34fdff5b88e9ea00683","name":"Leo Fall","registered_at":"2026-06-16T01:46:37Z","symbol":"NIM0898838","token_address":"0x9e1361bd2705d0396f936a3e538b055474904509","type":"artist","uuid":"22fad95b-8a2f-4646-aa43-90ee1faaa5a1"}
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 0xb19a6872e8033fae0b65197a05ac1bd80fe849b156b9e34fdff5b88e9ea00683. Chain 2 (Bitcoin): anchored in block 953947 (2026-06-16T13:14:26Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/22fad95b-8a2f-4646-aa43-90ee1faaa5a1.json and https://artists.proofprofile.net/proofs/artist/22fad95b-8a2f-4646-aa43-90ee1faaa5a1.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-16T13:14:26Z
  text: {"copyright_id":"0xb19a6872e8033fae0b65197a05ac1bd80fe849b156b9e34fdff5b88e9ea00683","name":"Leo Fall","registered_at":"2026-06-16T01:46:37Z","symbol":"NIM0898838","token_address":"0x9e1361bd2705d0396f936a3e538b055474904509","type":"artist","uuid":"22fad95b-8a2f-4646-aa43-90ee1faaa5a1"}
album: Fall: Der süsse Kavalier
  type: MusicAlbum
  date published: 2014-09-29
album: Fall: Die Kaiserin
  type: MusicAlbum
  date published: 2014-08-29
album: Fall: Brüderlein fein
  type: MusicAlbum
  date published: 2017-10-06