Pith Number

pith:5L4NAVP2

pith:2014:5L4NAVP23RFTU2B5SQUROXXT6L

not attested not anchored not stored refs pending

Self-referencing cellular automata: A model of the evolution of information control in biological systems

Alyssa M. Adams, Paul C. W. Davies, Sara Imari Walker, Theodore P. Pavlic

arxiv:1405.4070 v1 · 2014-05-16 · nlin.CG · cs.FL · nlin.CD · nlin.PS · q-bio.PE

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{5L4NAVP23RFTU2B5SQUROXXT6L}

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	2026-05-18T02:48:00.543410Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

eaf8d055fadc4b3a683d9429175ef3f2d72676fcbbd2b6a7335e8565e9237ff9

Aliases

arxiv: 1405.4070 · arxiv_version: 1405.4070v1 · doi: 10.48550/arxiv.1405.4070 · pith_short_12: 5L4NAVP23RFT · pith_short_16: 5L4NAVP23RFTU2B5 · pith_short_8: 5L4NAVP2

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/5L4NAVP23RFTU2B5SQUROXXT6L \
  | 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: eaf8d055fadc4b3a683d9429175ef3f2d72676fcbbd2b6a7335e8565e9237ff9

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6eab0a390c4f5b7eaa0e37c673154d94ca49410049d1e60adfc0a645d7a36658",
    "cross_cats_sorted": [
      "cs.FL",
      "nlin.CD",
      "nlin.PS",
      "q-bio.PE"
    ],
    "license": "http://creativecommons.org/licenses/by/3.0/",
    "primary_cat": "nlin.CG",
    "submitted_at": "2014-05-16T06:34:15Z",
    "title_canon_sha256": "200f9c7214d4bfbcdd0fba3f4157addad1dedc8fc6b88daaea957c988e37dbd6"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1405.4070",
    "kind": "arxiv",
    "version": 1
  }
}