§0 · Plumb

Verifiable AI inference,
signed on-chain.

Plumb is a self-hosted stack for AI inference, model hub, persistent memory, and on-chain pipe oracles. Every completion is receipted with an ed25519 signature; every settlement is a Merkle checkpoint on Base.

Read the docsExplore receipts ↗
§1 · Primitives

Four primitives. One self-hosted stack.

P.01–P.04 · all yours, no SaaS dependency
P.01Inference
OpenAI-compatible completions.

Drop-in replacement for the OpenAI SDK. Receipt every response. Settle batches on-chain nightly.

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P.02Hub
Content-addressed model registry.

Upload ONNX / GGUF / safetensors. Register on-chain via HubRegistry. Usage attributable to the uploader.

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P.03Pipe
On-chain inference oracle.

A smart-contract requests an inference by (modelHash, inputHash). Plumb computes, signs, and delivers a callback.

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P.04Memory
Persistent composed profiles.

Opt-in memory extraction from every turn. pgvector retrieval. Profile JSON reflects the conversation history.

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§2 · Live feed

Every response is a receipt.

These three entries are pulled live from api.plumbtech.xyz. Every completion is signed with ed25519; every batch is checkpointed on Base.

receipts.recent · live
12s ago
claude-sonnet-4-6
req 0xabcd1234…000000
0.482 PLMB
Verify →
47s ago
gpt-4o-mini
req 0xdeadbeef…000000
0.1285 PLMB
Verify →
1m ago
claude-haiku-4-5
req 0xcafebabe…000000
0.0632 PLMB
Verify →

↳ Full feed at explorer.plumbtech.xyz