Pith Number

pith:O66B42DM

pith:2011:O66B42DM37PW2TPFU4FFIEZ4D4

not attested not anchored not stored refs pending

Formation of regulatory modules by local sequence duplication

Armita Nourmohammad, Michael Laessig

arxiv:1105.4751 v1 · 2011-05-24 · q-bio.PE · q-bio.GN

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{O66B42DM37PW2TPFU4FFIEZ4D4}

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	2026-05-18T02:21:49.920773Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

77bc1e686cdfdf6d4de5a70a54133c1f12345d1087e95fc1ac1ae54843a1d915

Aliases

arxiv: 1105.4751 · arxiv_version: 1105.4751v1 · doi: 10.48550/arxiv.1105.4751 · pith_short_12: O66B42DM37PW · pith_short_16: O66B42DM37PW2TPF · pith_short_8: O66B42DM

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/O66B42DM37PW2TPFU4FFIEZ4D4 \
  | 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: 77bc1e686cdfdf6d4de5a70a54133c1f12345d1087e95fc1ac1ae54843a1d915

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "61781d3967b003716f20aaff0f018926216ef4a52d55056f849e37140f75f1de",
    "cross_cats_sorted": [
      "q-bio.GN"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "q-bio.PE",
    "submitted_at": "2011-05-24T12:48:06Z",
    "title_canon_sha256": "d8413d818f506a86846b45f824b39cc324e03f32e56e2d7a70e2d6ea72f73d6e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1105.4751",
    "kind": "arxiv",
    "version": 1
  }
}