soft3/bbg/specs/sync.md

cyber bbg spec cyber
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sync

the structural sync protocol is a cross-cutting spec spanning radio, cybergraph, bbg, cyb/sync, and foculus.

see cybergraph/specs/structural-sync for the full protocol.

bbg's role in sync

bbg is a pure state library. it has no network code and no sync protocol.

what bbg provides to the sync protocol:

layer 3 (completeness): Lens polynomial commitments. each neuron commits its signal chain; bbg commits the finalized signals dimension of BBG_poly. withholding is algebraically detectable.

query wire: prove(key, dimension) → QueryProof. cybergraph serves these proofs over the query wire protocol. bbg builds them.

BBG_root: the checkpoint used by the local sync protocol and the light client. BBG_root = H(Lens.commit(BBG_poly) ‖ Lens.commit(A) ‖ Lens.commit(N)).

signal finalization: after cybergraph validates a signal (layers 1–2) it calls bbg.apply(tx). bbg applies the state transition and recomputes BBG_root.

what bbg does NOT own: signal structure, hash chains, equivocation detection, VDF, CRDT merge, transport. those live in cybergraph and cyb/sync.

Homonyms

cyb/sync
cyb/fs/sync
cyb/docs/sync
General every process is RxJs async loop with N-second interval all CID from's from any links in any process goes to separate _particle resolver queue(non-blocking)_ My transactions process Sync all current neuron transactions: extract tweets, and chat(any interractions with other neurons).…
cyb/honeycrisp/acpu/src/sync
sync
bootloader/space-pussy/ts/docs/sync
General every process is RxJs async loop with N-second interval all CID from's from any links in any process goes to separate _particle resolver queue(non-blocking)_ My transactions process Sync all current neuron transactions: extract tweets, and chat(any interractions with other neurons).…
cyb/wysm/crates/wasi/src/sync
sync
cyb/src/services/backend/services/sync
sync
bootloader/space-pussy/ts/src/services/backend/services/sync
sync

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