time
the $t$ field of a signal: $t \in \mathbb{Z}_{\geq 0}$. block height at which the signal is committed to the cybergraph. every cyberlink in the signal shares the same $t$ — they enter the graph together, timestamped by the containing signal.
time is the temporal anchor of every signal. it answers when — the one question that cannot be answered by content or structure alone. the block height is the cybergraph's logical clock.
definition
$$t(s) \in \mathbb{Z}_{\geq 0}$$
monotonically increasing block counter. every cyberlink in a given signal shares the same $t$. ordering within a block is determined by the $\phi^*$ convergence trajectory (see foculus)
role in the append-only graph
axiom A3 guarantees $t < t' \Rightarrow L_t \subseteq L_{t'}$. time makes this ordering explicit: every signal carries its birth moment, and every cyberlink it produces enters $L$ at that height. the graph grows monotonically through time.
the same author linking the same structural triple $(\nu, p, q)$ in two signals at $t_1$ and $t_2 > t_1$ produces two separate entries in $L$. the signals' block heights distinguish them. this enables:
- reinforcement — higher amount on a new record at a later block
- valence update — new epistemic prediction at a new block
- multi-denomination staking — same structural link in different tokens at different times
role in discovery premium
time determines who discovered what first. the attention yield curve rewards early accurate linking:
$$R_\ell(T) = \int_0^T w(t) \cdot \Delta\phi^*(q, t)\, dt$$
a cyberlink created at $t_1$ (early, when $\phi^*(q)$ is low) captures more cumulative $\Delta\phi^*$ than an identical link at $t_2 \gg t_1$ (late, when $\phi^*(q)$ has already risen). the time field is what makes this attribution possible — it is the provenance of priority
role in temporal decay
staleness depends on time. a link created at $t_\ell$ can be weighted by temporal decay:
$$w(t, \ell) = a(\ell) \cdot e^{-\lambda(t - t_\ell)}$$
where $\lambda$ is a per-namespace decay constant. mathematics namespaces use $\lambda = 0$ (no decay). current events namespaces use positive $\lambda$. the time field makes decay computable
role in consensus
foculus orders state transitions by $\phi^*$ convergence trajectory across time. a particle crosses the finality threshold $\tau$ at some block height — that block height is the finality time. the nullifier set $N$ grows monotonically through time. time provides the causal ordering that makes double-spend detection deterministic
role in signals
$t$ is a first-class field of every signal — the signal's batch of cyberlinks all inherit this timestamp. the stark proof $\sigma$ references the BBG root at $t$ — proving that the focus shift $\Delta\phi^*$ was computed against the graph state at that specific moment
machine time
time in the cybergraph is discrete, deterministic, and consensus-verified. it is the vimputer's logical clock — the ordered sequence of steps at which the tru recomputes focus, cyberank, karma, and syntropy
| property | physical time | cybergraph time |
|---|---|---|
| substrate | continuous | discrete block heights |
| authority | clocks, GPS | consensus |
| ordering | relativistic, observer-dependent | total order via block sequence |
| granularity | Planck time | block interval (~5s in bostrom) |
| verifiability | requires trusted clock | verifiable from chain headers |
see signal for the full structure. see cyberlink for the 6-tuple content that time stamps. see foculus for how time interacts with finality.