Pith Number

pith:U5XJ4L7K

pith:2009:U5XJ4L7KA3IIIHGDT7V3GKEUB4

not attested not anchored not stored refs pending

Evolution models with base substitutions, insertions, deletions and selection

D.B. Saakian

arxiv:0908.1617 v1 · 2009-08-12 · q-bio.PE · q-bio.QM

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{U5XJ4L7KA3IIIHGDT7V3GKEUB4}

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	2026-05-18T02:12:35.276345Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a76e9e2fea06d0841cc39febb328940f072cff87c50a4e5937044eb03b75e195

Aliases

arxiv: 0908.1617 · arxiv_version: 0908.1617v1 · doi: 10.48550/arxiv.0908.1617 · pith_short_12: U5XJ4L7KA3II · pith_short_16: U5XJ4L7KA3IIIHGD · pith_short_8: U5XJ4L7K

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/U5XJ4L7KA3IIIHGDT7V3GKEUB4 \
  | 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: a76e9e2fea06d0841cc39febb328940f072cff87c50a4e5937044eb03b75e195

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9a4efd451153e75ed9ce2a8dfca5ed183a4b32408c1f2168f69a570daa3f865f",
    "cross_cats_sorted": [
      "q-bio.QM"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "q-bio.PE",
    "submitted_at": "2009-08-12T05:47:12Z",
    "title_canon_sha256": "1e98359f3c61a0e722332493f960a7f3353d16185860b15eb9b1157165fdc77e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0908.1617",
    "kind": "arxiv",
    "version": 1
  }
}