SSM-Clock Stamp – Conclusion (15)

What is achievable right now (offline, ASCII-only)

• Stamp & verify with one line that binds bytes + clock + chain:
  SSMCLOCK1|iso_utc|rasi_idx|theta_deg|sha256(file)|chain[|kv:...]
  Chain rule: chain_k = H_chain( ascii(chain_{k-1} + "|" + stamp_core) ) with chain_0 = "0"*64.
• Anchor daily (optional) for a public “no-later-than” bound:
  rollup_D = sha256( ascii(Stamp_1 "|" ... "|" Stamp_n) ) after canonical sort by (iso_utc, stamp_core, chain).
• Audit anytime by recomputing h' = H_algo(file_bytes), deriving the clock from iso_utc, and (if a ledger exists) rewalking the chain locally.

Design reminders (portable, deterministic)

• UTC only: iso_utc = "YYYY-MM-DDTHH:MM:SSZ" (no subseconds; :60 forbidden).
• Clock from UTC (no ephemeris):
  wrap360(x) = x - 360*floor(x/360)
theta_deg = wrap360( (unix_seconds / 86400) * 360 )
rasi_idx = floor(theta_deg / 30)
  Print theta_deg with exactly theta_prec digits (default 5, ties-to-even, IEEE-754 binary64).
• ASCII discipline: only | as separator; all digests lowercase 64-hex; hash inputs are ascii(...) of the exact joined strings.
• Agility via kv: (optional): keys like algo, chain_algo, theta_prec, float, time_mode, plus provenance such as chain_id, device. Unknown keys are ignored by verifiers.

How to position it

• Keep the Shunyaya Symbolic Mathematical Clock Stamp as your offline, zero-ceremony truth for integrity and append-only order.
• Add anchors later for public time bounds, and layer signatures or external attestations if policy requires — without changing existing stamps.

Navigation
Back: SSM-Clock Stamp – Hardware Profile (14)

OMP