Pith Number

pith:Z66PSJ7U

pith:2025:Z66PSJ7USCAP7DZ3MEH2HGFQ6F

not attested not anchored not stored refs pending

Fitness inference tested by in silico population genetics

Erik Aurell, Hong-Li Zeng, John Barton, Yu-Han Huang

arxiv:2510.20500 v1 · 2025-10-23 · q-bio.PE · physics.bio-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{Z66PSJ7USCAP7DZ3MEH2HGFQ6F}

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	2026-07-14T01:22:01.831791Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

cfbcf927f49080ff8f3b610fa398b0f14d4d3bc81e79939c75b135872f9c6111

Aliases

arxiv: 2510.20500 · arxiv_version: 2510.20500v1 · doi: 10.48550/arxiv.2510.20500 · pith_short_12: Z66PSJ7USCAP · pith_short_16: Z66PSJ7USCAP7DZ3 · pith_short_8: Z66PSJ7U

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/Z66PSJ7USCAP7DZ3MEH2HGFQ6F \
  | 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: cfbcf927f49080ff8f3b610fa398b0f14d4d3bc81e79939c75b135872f9c6111

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "fe53ca6bc98b18b2c8c01991b9165a31255f423aa8f31e7c41952f6700a8b359",
    "cross_cats_sorted": [
      "physics.bio-ph"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "q-bio.PE",
    "submitted_at": "2025-10-23T12:45:05Z",
    "title_canon_sha256": "af4eb48b58307f83917ec73fcc5ba319921fafb46908f5f3fecde4c9d93f7f2e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2510.20500",
    "kind": "arxiv",
    "version": 1
  }
}