Pith Number

pith:7GVEBWQF

pith:2005:7GVEBWQFENSH3WVASXGAJKFYDF

not attested not anchored not stored refs pending

A probabilistic model for gene content evolution with duplication, loss, and horizontal transfer

Istv\'an Mikl\'os, Mikl\'os Cs\H{u}r\"os

arxiv:q-bio/0509037 v1 · 2005-09-27 · 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{7GVEBWQFENSH3WVASXGAJKFYDF}

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	2026-05-18T01:05:07.051951Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f9aa40da0523647ddaa095cc04a8b8194f72c035105b65b6b2d4c959d58fc6bb

Aliases

arxiv: q-bio/0509037 · arxiv_version: q-bio/0509037v1 · doi: 10.48550/arxiv.q-bio/0509037 · pith_short_12: 7GVEBWQFENSH · pith_short_16: 7GVEBWQFENSH3WVA · pith_short_8: 7GVEBWQF

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/7GVEBWQFENSH3WVASXGAJKFYDF \
  | 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: f9aa40da0523647ddaa095cc04a8b8194f72c035105b65b6b2d4c959d58fc6bb

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "fa9645ee74ef982b40bdb778bc0af8652ce0a3aaf9459e0d071f885cdc4c6646",
    "cross_cats_sorted": [
      "q-bio.QM"
    ],
    "license": "",
    "primary_cat": "q-bio.PE",
    "submitted_at": "2005-09-27T14:17:53Z",
    "title_canon_sha256": "a61504113c7df98d3ebd1989562009de8530568d4c9b4f3e9ad3162593d7bdcf"
  },
  "schema_version": "1.0",
  "source": {
    "id": "q-bio/0509037",
    "kind": "arxiv",
    "version": 1
  }
}