Make a pledge, record it on a transparent chain, and prove tamper‑resistance. Perfect for a 4‑minute hackathon demo.
Tip: use Tamper on a block below to simulate an attack. Then click Repair from here to fix downstream hashes. Press ? to open About.
| # | Timestamp | Name | Pledge | Prev Hash | Hash | Actions |
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What it is: a single‑file, browser‑only demo that simulates a blockchain ledger for sustainability pledges. It demonstrates transparency and tamper detection with SHA‑256 hashes and linked blocks.
Tip: Press ? to open this dialog anytime.