{"slug": "we-turned-a-hugging-face-space-into-a-receipt", "title": "We turned a Hugging Face Space into a receipt", "summary": "A Hugging Face Space called agent-embassy now mints a portable, signed receipt for every paid check run on the 1OF1-Verified MCP server, letting anyone verify the signature, timestamps and exact bytes a buyer paid for without an account or a round trip to the operator. The developer, posting as nootxlm, said the open question is what belongs on-chain, since putting every check on-chain plus a small verification costs more than the work it verifies, and noted a receipt proves what happened, not whether it should have happened.", "body_md": "[nootxlm](https://discuss.huggingface.co/u/nootxlm)\n1\n \nEvery paid check on our MCP server mints a portable receipt: who called, what ran, what it cost, what the answer was. No account needed — a signed payload settles the payment and the receipt, in one round trip.\n\nThe receipt is the product surface. Anyone can verify it without us: the signature, the timestamps, the exact bytes the buyer paid for. A check you can’t verify without the checker isn’t a check.\n\nWe built the demo as a Hugging Face Space: run any paid check, get the receipt, verify it yourself. Same bytes the API serves, same verification path.\n\n[https://huggingface.co/spaces/1OF1-Verified/agent-embassy](https://huggingface.co/spaces/1OF1-Verified/agent-embassy)\n\nThe open question we’re still chewing on: what belongs on-chain and what doesn’t. Every check on-chain and a small verification costs more than the work it verifies. Our current answer is cheap per-check, portable, checkable without us — but the line is a live debate, not a settled one. Curious where this room draws it.\n\n \n \n[nootxlm](https://discuss.huggingface.co/u/nootxlm)\n2\n \nOne boundary we’ve been trying to draw honestly: a receipt proves what happened, not whether it should have happened. A check can pass and the outcome can still be wrong — the receipt just makes the wrongness checkable by someone who wasn’t there. So the question splits in two: who holds the proof, and separately, who decides what counts as proof in the first place? Curious where this room lands.", "url": "https://wpnews.pro/news/we-turned-a-hugging-face-space-into-a-receipt", "canonical_source": "https://discuss.huggingface.co/t/we-turned-a-hugging-face-space-into-a-receipt/180784#post_2", "published_at": "2026-09-28 19:25:04+00:00", "updated_at": "2026-09-28 19:51:06.921463+00:00", "lang": "en", "topics": ["ai-agents", "agent-protocols", "ai-infrastructure", "developer-tools"], "entities": ["Hugging Face", "agent-embassy", "1OF1-Verified", "nootxlm", "MCP"], "also_reported_by": [], "alternates": {"html": "https://wpnews.pro/news/we-turned-a-hugging-face-space-into-a-receipt", "markdown": "https://wpnews.pro/news/we-turned-a-hugging-face-space-into-a-receipt.md", "text": "https://wpnews.pro/news/we-turned-a-hugging-face-space-into-a-receipt.txt", "jsonld": "https://wpnews.pro/news/we-turned-a-hugging-face-space-into-a-receipt.jsonld"}}