August Stradal
type: MusicGroup
description: thumb|180px|August Stradal August Stradal (17 May 1860 – 13 March 1930) was a Czech virtuoso pianist, arranger, composer, author and music teacher. Career Stradal was born on 17 May 1860 in Teplice,
popularity: 2
followers: 85
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x36cdf248e4375eaec49a554b7fe2faaacec9b3883761d857cb5c634f3da91766
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954065
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954065
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/484d2a0c-b309-45e2-a61b-9004e8908b4a.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/484d2a0c-b309-45e2-a61b-9004e8908b4a.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/484d2a0c-b309-45e2-a61b-9004e8908b4a
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T08:10:43Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x36cdf248e4375eaec49a554b7fe2faaacec9b3883761d857cb5c634f3da91766","name":"August Stradal","registered_at":"2026-06-16T14:48:18Z","symbol":"NIM1085430","token_address":"0x2a7f8a84817d8dbf01c31e87eb6fe8dc2271afd3","type":"artist","uuid":"484d2a0c-b309-45e2-a61b-9004e8908b4a"}
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 0x36cdf248e4375eaec49a554b7fe2faaacec9b3883761d857cb5c634f3da91766. Chain 2 (Bitcoin): anchored in block 954065 (2026-06-17T08:10:43Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/484d2a0c-b309-45e2-a61b-9004e8908b4a.json and https://artists.proofprofile.net/proofs/artist/484d2a0c-b309-45e2-a61b-9004e8908b4a.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T08:10:43Z
  text: {"copyright_id":"0x36cdf248e4375eaec49a554b7fe2faaacec9b3883761d857cb5c634f3da91766","name":"August Stradal","registered_at":"2026-06-16T14:48:18Z","symbol":"NIM1085430","token_address":"0x2a7f8a84817d8dbf01c31e87eb6fe8dc2271afd3","type":"artist","uuid":"484d2a0c-b309-45e2-a61b-9004e8908b4a"}