Pith Number

pith:FWCKPET7

pith:2026:FWCKPET7PZB4IUTDRBUQ5TVKZG

not attested not anchored not stored refs pending

A Pragmatic Guide to Building Conservative Discrete Abstractions of Cyber-Physical Systems

Ethan Howes, Ivan Ruchkin, James Gast, Jordan Peper, Krish Kapadia

arxiv:2608.10254 v1 · 2026-08-10 · eess.SY · cs.LO · cs.SY

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{FWCKPET7PZB4IUTDRBUQ5TVKZG}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more · Embed verified badge

Record completeness

1 Bitcoin timestamp

2 Internet Archive

3 Author claim open · sign in to claim

4 Citations open

5 Replications open

✓ Portable graph bundle live · download bundle · merged state

The bundle contains the canonical record plus signed events. A mirror can host it anywhere and recompute the same current state with the deterministic merge algorithm.

Receipt and verification

First computed	2026-08-12T00:23:11.547071Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2d84a7927f7e43c4526388690eceaac9952e6f958b0a4a62d8122b9ee1b2c265

Aliases

arxiv: 2608.10254 · arxiv_version: 2608.10254v1 · doi: 10.48550/arxiv.2608.10254 · pith_short_12: FWCKPET7PZB4 · pith_short_16: FWCKPET7PZB4IUTD · pith_short_8: FWCKPET7

Agent API

Resolver JSON Graph JSON Events JSON Schema Signing key

Verify this Pith Number yourself

curl -sH 'Accept: application/ld+json' https://pith.science/pith/FWCKPET7PZB4IUTDRBUQ5TVKZG \
  | jq -c '.canonical_record' \
  | python3 -c "import sys,json,hashlib; b=json.dumps(json.loads(sys.stdin.read()), sort_keys=True, separators=(',',':'), ensure_ascii=False).encode(); print(hashlib.sha256(b).hexdigest())"
# expect: 2d84a7927f7e43c4526388690eceaac9952e6f958b0a4a62d8122b9ee1b2c265

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b02ce8003a724684b5bf2a4b0dd9b6a7fc22503b909a7eaa8950cb7c3d08fe1a",
    "cross_cats_sorted": [
      "cs.LO",
      "cs.SY"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "eess.SY",
    "submitted_at": "2026-08-10T21:37:47Z",
    "title_canon_sha256": "05e34bf9adaff9063dd39a37a68798615806aecef09f8484436d5c0fdc773b37"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2608.10254",
    "kind": "arxiv",
    "version": 1
  }
}