Pith Number

pith:UDBIPVCW

pith:2025:UDBIPVCWWAOYJ3RHFSN4DCF5NJ

not attested not anchored not stored refs pending

Prebiotic Functional Programs: Endogenous Selection in an Artificial Chemistry

Cole Mathis, Devansh Vimal, Stephanie Forrest, Westley Weimer

arxiv:2509.03534 v1 · 2025-08-27 · cs.FL · 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{UDBIPVCWWAOYJ3RHFSN4DCF5NJ}

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	2026-07-05T12:04:41.742133Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a0c287d456b01d84ee272c9bc188bd6a4c263479409110a303bc431ec477ca20

Aliases

arxiv: 2509.03534 · arxiv_version: 2509.03534v1 · doi: 10.48550/arxiv.2509.03534 · pith_short_12: UDBIPVCWWAOY · pith_short_16: UDBIPVCWWAOYJ3RH · pith_short_8: UDBIPVCW

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/UDBIPVCWWAOYJ3RHFSN4DCF5NJ \
  | 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: a0c287d456b01d84ee272c9bc188bd6a4c263479409110a303bc431ec477ca20

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "669eff9d5ec789aa8c4aa19e02d1a85afd7bf5956466c0510c57c592aca7620d",
    "cross_cats_sorted": [
      "q-bio.PE"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.FL",
    "submitted_at": "2025-08-27T00:01:42Z",
    "title_canon_sha256": "f35bd30a4b0dadefda127667af29503771099bca7d6d0d6eda2b170842ae1f42"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2509.03534",
    "kind": "arxiv",
    "version": 1
  }
}