Pith Number

pith:XHDQRUZC

pith:2012:XHDQRUZCPXCKGR3XYA2CORWLF3

not attested not anchored not stored refs pending

Quasispecies Theory for Evolution of Modularity

Jeong-Man Park, Liang Ren Niestemski, Michael W. Deem

arxiv:1211.5646 v4 · 2012-11-24 · 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{XHDQRUZCPXCKGR3XYA2CORWLF3}

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	2026-05-18T02:30:01.398122Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b9c708d3227dc4a34777c0342746cb2ee698d806a9744327df1bdd5734ee30ad

Aliases

arxiv: 1211.5646 · arxiv_version: 1211.5646v4 · doi: 10.48550/arxiv.1211.5646 · pith_short_12: XHDQRUZCPXCK · pith_short_16: XHDQRUZCPXCKGR3X · pith_short_8: XHDQRUZC

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/XHDQRUZCPXCKGR3XYA2CORWLF3 \
  | 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: b9c708d3227dc4a34777c0342746cb2ee698d806a9744327df1bdd5734ee30ad

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "aa14abadb2f38a9ce4d8b3cc8972bd5970cd6e66632c972a5df28178a239de0f",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "q-bio.PE",
    "submitted_at": "2012-11-24T04:37:20Z",
    "title_canon_sha256": "f9a19415d68596b4b23f21454010b3efb30b5ee2a882e39ceb3a7f03a9bac9b7"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1211.5646",
    "kind": "arxiv",
    "version": 4
  }
}