Wrap your agent once. Every action emits a content-addressed, physics-grounded receipt — automatically, forever. Free protocol. By 2032, it's how AI agents trust each other.
cso.aevum.network
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IETF draft-aevum-pacr-00
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OPEN Apache-2.0 + patent grant
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SAFE #![forbid(unsafe_code)]
8f3a47e1…c9e2bb04
draft-aevum-pacr-00
Not a feature you remember to use. Not a logging library you instrument by hand.
Wrap your agent once — every .invoke()
after that ships with a receipt. Reflex, not decision.
The adapter recognizes your existing LangChain, CrewAI, AutoGen, or MCP agent and starts minting PACR records on every call. No middleware to deploy. No dashboard to babysit.
02 · WRAPPING IS THE LOCK-INYour auditor, your CFO, your compliance officer — they will see the receipts and they will not let you go back to logs. The dependency goes the way of git: you adopted it because it was useful; you stay because the world expects it.
Aevum's first three deployments map one-to-one onto the protocol's three pillars: hyperscale, thermodynamic accountability, causal complexity. Each substrate gets its own AgentCard family — already specified, already shipping.
For semiconductor fabs, manufacturing robotics, autonomous logistics. Where one agent decision controls a $10M physical process, the receipt is the contract.
For planet-scale digital twins, grid operations, climate sensor networks. Where AI burns measurable energy and reshapes physical infrastructure, the Landauer floor is the receipt.
For longevity research, intervention trials, multi-omics. Where claims must trace from a single edited base pair to a phenotypic outcome — without losing provenance.
Six fields. Open standard. IETF-track. Same shape across every framework. This is what your wrapped agent emits.
CausalId · 128-bit · ULID · content-addressedSmallVec<[CausalId; 4]> · DAG · special-relativity-correctEstimate<f64> joules · uncertainty bounds(E, T, S) · ML-bounded(S_T, H_T) · CSSR · arXiv:2601.03220bytes::Bytes · arbitraryThe thermodynamic and adoption-velocity equivalents of public market data. Anyone reads. No one controls.
The standard is free, forever, and cannot be made unfree (Apache-2.0 + explicit patent grant). The hosted operations are paid because operating them costs joules. The first three substrates get year one free in exchange for becoming a public reference.
#![forbid(unsafe_code)]One install. Three lines. No human in the loop.