[Cryptography] ANGX — append-only logging protocol with Ed25519 signing and witness verification

[Joachim Strömbergson]

On 11 May 2026, at 20:55, angx via cryptography wrote:
> ANGX is a minimal two-log protocol for recording operational work and standing surplus provisions. Every entry is signed with Ed25519 before writing. Authorship is always traceable to a keypair. Nothing can be edited or deleted.Each node maintains two independent Hypercore feeds — a steward feed written only by the node's own keypair, and a witness feed written by external keypairs after direct observation or replication. The two feeds are structurally separate. Contradictions between them are permanently visible alongside corroborations.The schema is transport-agnostic. Current prototype uses a relay server. Target implementation is Hypercore.Protocol specification: https://codeberg.org/angx-protocol/angeliax Working prototype: https://codeberg.org/angx-protocol/angx-prototype

Very interesting! How does this compares to Sigsum and the Glasklar witness, and Sigstore? ANGX seems to try and solve similar problems. Sigsum use Ed25519 and independent (one or more, several) witnesses.

https://www.sigsum.org/
https://docs.system-transparency.org/st-1.3.0/
https://www.sigstore.dev/

BR
JoachimS
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