VisiCalc (Atari 400/800)
REGISTERED
| Registered to | Video Game Palooza, Inc. — 501(c)(3) public charity, corporate account EV-CORP-0001 |
| First registered | August 23, 2026 (UTC) |
| Photographs sealed | 5 |
| Source | Live listing at the Video Game Palooza charity store — part of the VGP collection catalog (item #00195) |
What am I looking at?
This is a certificate of registration. The item below was registered in the EverVerify public registry by its owner. Registration creates a permanent, tamper-evident record of what the item is, what its photographs look like, who registered it, and when.
What is a SHA-256 fingerprint? A unique digital fingerprint computed from a photo's exact contents. Change even one pixel and the fingerprint changes completely. If a file in your possession produces the same fingerprint, it is bit-for-bit the registered original.
What is a receipt? Every registration is sealed as a signed entry in a chain, where each entry locks in the one before it — like pages in a notary's ledger that cannot be quietly rewritten. The receipt code shown is that entry's identifier in the chain.
Technical details — fingerprints & receipts
| # | SHA-256 fingerprint | Receipt |
|---|---|---|
| 1 | 6854f1c86eff80bf9b014fecdd7988f2ebf4fca457fcf5012a0e3d784930cfa7 | c03cf61f09c3fdf89728… |
| 2 | bd82f9fc438c4e8523cad07374dde5912c4dc2a3f837cd97d466c8ebc4a48848 | c1c0c0cb5b58c68b8f65… |
| 3 | 9fabb4854e25a5303aead90fde27f5aaf8f869fa516841340e53a33288de256f | bd662e29427abe09c324… |
| 4 | f8501794ecfb2602639fcc2e7708e8b1ccafe4bd6b55e0ad6806b40d86315f5b | 2ea0936deb34d55530a4… |
| 5 | c8347b0715426aba9ceb1dbcb80622e9c0e823b5d598dc428d3b3d4c00ea6f77 | 4e7395dd7ec8cd352524… |
Chain: hash-linked, HMAC-signed receipts (QSurface pattern). Verify any file on the registry home — files are hashed in your browser and never uploaded.