Jakub Martinec
type: MusicGroup
genre: gregorian chant
description: Jakub Martinec may refer to: Jakub Martinec (footballer) (born 1998), Czech footballer Jakub Martinec (musical artist) (born 1979), Czech professor of choral activities
popularity: 2
followers: 43
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xea8d694ffc141f482c421580010677e5e4e255fca0c938c21727a9fac0e58b58
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954346
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954346
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/97c80ef5-a602-4206-991f-90d75188f623.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/97c80ef5-a602-4206-991f-90d75188f623.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/97c80ef5-a602-4206-991f-90d75188f623
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-19T03:51:26Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xea8d694ffc141f482c421580010677e5e4e255fca0c938c21727a9fac0e58b58","name":"Jakub Martinec","registered_at":"2026-06-17T18:40:14Z","symbol":"NIM1484235","token_address":"0x0bf1090c51319e77d89840b373d2184cc10b1cb7","type":"artist","uuid":"97c80ef5-a602-4206-991f-90d75188f623"}
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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea8d694ffc141f482c421580010677e5e4e255fca0c938c21727a9fac0e58b58. Chain 2 (Bitcoin): anchored in block 954346 (2026-06-19T03:51:26Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/97c80ef5-a602-4206-991f-90d75188f623.json and https://artists.proofprofile.net/proofs/artist/97c80ef5-a602-4206-991f-90d75188f623.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-19T03:51:26Z
  text: {"copyright_id":"0xea8d694ffc141f482c421580010677e5e4e255fca0c938c21727a9fac0e58b58","name":"Jakub Martinec","registered_at":"2026-06-17T18:40:14Z","symbol":"NIM1484235","token_address":"0x0bf1090c51319e77d89840b373d2184cc10b1cb7","type":"artist","uuid":"97c80ef5-a602-4206-991f-90d75188f623"}
album: A Ceremony of Carols
  type: MusicAlbum
  date published: 2012-09-01
album: A Ceremony of Carols
  type: MusicAlbum
  date published: 2012-09-01