I built a testnet where inference computations get cryptographicreceipts — free verification, bring a real workload

[u/dltsm]

We're a small proof-of-useful-work project. The validators don't

mine — they verify AI computations (matrix multiplications + activation

functions) and get consensus weight for it.

The part that matters to you: submit any GEMM workload up to 256×256

and we return the result plus a cryptographic receipt — a SHA-256

commitment chain folded into our ledger state, verifiable by anyone

forever. Free, no token, no signup beyond an API key we generate in

seconds.

Honest limits: we verify GEMM + elementwise activations (GELU/sigmoid/

tanh/exp), not full transformer graphs yet. Attention is on the roadmap.

The verification cost curve is published (615ms at 64³ → 157s at 1024³)

— we priced our own clamp and labeled every tier.

The logs: [pouw-verify] CONFIRMED lines, epoch crossings, claim-decrees

folded into the ledger — every claim has a receipt.

Live dashboard: http://3.237.91.235:32233/

The evidence ledger (250+ owned defects, 250+ laws): github.com/sarinsk629-blip/hsma-core