Josef Chuchro
type: MusicGroup
genre: chamber music
description: Josef Chuchro (3 July 1931 – 19 August 2009) was a Czech cellist. Life and career Josef Chuchro was born on 3 July 1931 in Prague. His father Josef Chuchro senior (1903–1975), who was an organist, pr
popularity: 3
followers: 21
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x048ce27b45f29c8f1598dbce9a8490e60530cbed962c3276caaf92e61e53418a
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954659
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954659
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/dc36b839-15b5-4dea-8b20-4524cedefae2.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/dc36b839-15b5-4dea-8b20-4524cedefae2.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/dc36b839-15b5-4dea-8b20-4524cedefae2
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-21T06:14:42Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x048ce27b45f29c8f1598dbce9a8490e60530cbed962c3276caaf92e61e53418a","name":"Josef Chuchro","registered_at":"2026-06-21T05:11:50Z","symbol":"NIM1826522","token_address":"0x29b449e7b1bf9b3f2fb2e0d18d5e5b01aab2a532","type":"artist","uuid":"dc36b839-15b5-4dea-8b20-4524cedefae2"}
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 0x048ce27b45f29c8f1598dbce9a8490e60530cbed962c3276caaf92e61e53418a. Chain 2 (Bitcoin): anchored in block 954659 (2026-06-21T06:14:42Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/dc36b839-15b5-4dea-8b20-4524cedefae2.json and https://artists.proofprofile.net/proofs/artist/dc36b839-15b5-4dea-8b20-4524cedefae2.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-21T06:14:42Z
  text: {"copyright_id":"0x048ce27b45f29c8f1598dbce9a8490e60530cbed962c3276caaf92e61e53418a","name":"Josef Chuchro","registered_at":"2026-06-21T05:11:50Z","symbol":"NIM1826522","token_address":"0x29b449e7b1bf9b3f2fb2e0d18d5e5b01aab2a532","type":"artist","uuid":"dc36b839-15b5-4dea-8b20-4524cedefae2"}
album: Grandes Épocas de la Música. Beethoven: Concierto Op. 56, Sonata No. 10 Op.96
  type: MusicAlbum
  date published: 2015-09-08