Jan Sahara Hedl
type: MusicGroup
genre: big beat
genre: folk rock
description: Jan Hedl (born 9 January 1957, in Prague), known as Jan Sahara Hedl or simply Sahara, is a Czech singer-songwriter. Among his well-known hits are "Dívka a noc" and "Tisíc jmen". In his childhood he p
popularity: 13
followers: 703
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x3fcdd5e652dd0a600695859768317b37d8d306f2af737f715723b0f92afc467f
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953625
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953625
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/22db6de9-93c8-4336-af7e-a60b95fcf12e.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/22db6de9-93c8-4336-af7e-a60b95fcf12e.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/22db6de9-93c8-4336-af7e-a60b95fcf12e
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-14T11:37:06Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x3fcdd5e652dd0a600695859768317b37d8d306f2af737f715723b0f92afc467f","name":"Jan Sahara Hedl","registered_at":"2026-06-14T08:05:12Z","symbol":"NIM0390232","token_address":"0x97fce0e0142dc79f678236c88eb1e9d470202f21","type":"artist","uuid":"22db6de9-93c8-4336-af7e-a60b95fcf12e"}
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 0x3fcdd5e652dd0a600695859768317b37d8d306f2af737f715723b0f92afc467f. Chain 2 (Bitcoin): anchored in block 953626 (2026-06-14T11:41:45Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/22db6de9-93c8-4336-af7e-a60b95fcf12e.json and https://artists.proofprofile.net/proofs/artist/22db6de9-93c8-4336-af7e-a60b95fcf12e.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-14T11:41:45Z
  text: {"copyright_id":"0x3fcdd5e652dd0a600695859768317b37d8d306f2af737f715723b0f92afc467f","name":"Jan Sahara Hedl","registered_at":"2026-06-14T08:05:12Z","symbol":"NIM0390232","token_address":"0x97fce0e0142dc79f678236c88eb1e9d470202f21","type":"artist","uuid":"22db6de9-93c8-4336-af7e-a60b95fcf12e"}
album: Tajnej svatej
  type: MusicAlbum
  date published: 2013-08-30