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S11 E9 · 1:14:14 · 12 Jul 2022

S11 E9: Pavol Rusnak (Stick) on Trezor, SatoshiLabs & Open Source

Released at block 744,638
MP3 (102 MB)

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Pavol Rusnak (Stick) is one of the most prolific contributors in the Bitcoin space. Since creating the Trezor hardware wallet with his friend Slush, he worked tirelessly to create open source standards that make using BTC more secure and private.

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This is the SHA-256 fingerprint of the MP3 as published here, timestamped in the Bitcoin blockchain with OpenTimestamps. If one byte of the file changes, the fingerprint changes.

SHA-256
4bf06d39c01bf5856e02e1d36ed4dbe7d54d1e5d9fd1b56cb2d7ce13aed15bf4
Proof
2022-07-12_s11_e9_pavol_rusnak_on_trezor__satoshilabs__and_open_source_software.mp3.ots · all episode hashes (proof)
Status
Anchored in Bitcoin block 974,312
How to check it yourself
  1. Download the MP3 and the proof into the same folder.
  2. Run sha256sum 2022-07-12_s11_e9_pavol_rusnak_on_trezor__satoshilabs__and_open_source_software.mp3 (on a Mac: shasum -a 256 2022-07-12_s11_e9_pavol_rusnak_on_trezor__satoshilabs__and_open_source_software.mp3). The result must match the SHA-256 above.
  3. Install the OpenTimestamps client (pip install opentimestamps-client) and run ots verify 2022-07-12_s11_e9_pavol_rusnak_on_trezor__satoshilabs__and_open_source_software.mp3.ots. It hashes the MP3 again and checks the proof against your own Bitcoin node, then prints the block and the date the file existed by. Without a node, ots info 2022-07-12_s11_e9_pavol_rusnak_on_trezor__satoshilabs__and_open_source_software.mp3.ots shows the block height to look up in any block explorer.
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