Pith Number

pith:5TLAEVLV

pith:2009:5TLAEVLVVCNDKH2EFZKPJNQYCT

not attested not anchored not stored refs pending

DNA looping provides stability and robustness to the bacteriophage lambda switch

Marco J. Morelli, Pieter Rein ten Wolde, Rosalind J. Allen

arxiv:0905.2329 v1 · 2009-05-14 · q-bio.MN · 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{5TLAEVLVVCNDKH2EFZKPJNQYCT}

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	2026-05-18T02:13:39.393840Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ecd6025575a89a351f442e54f4b61814d7d2dccb0d140cf5093422c0ce641bca

Aliases

arxiv: 0905.2329 · arxiv_version: 0905.2329v1 · doi: 10.48550/arxiv.0905.2329 · pith_short_12: 5TLAEVLVVCND · pith_short_16: 5TLAEVLVVCNDKH2E · pith_short_8: 5TLAEVLV

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/5TLAEVLVVCNDKH2EFZKPJNQYCT \
  | 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: ecd6025575a89a351f442e54f4b61814d7d2dccb0d140cf5093422c0ce641bca

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a70ecaaf3e02c13e5d6145dc6fa2e886cdfa5c284ccd72baf04378d569a3e8fb",
    "cross_cats_sorted": [
      "q-bio.QM"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "q-bio.MN",
    "submitted_at": "2009-05-14T13:37:23Z",
    "title_canon_sha256": "82bdb5597c54dd695e34a0e13a361f6769288c413d17da3ba1d0fd5950d35584"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0905.2329",
    "kind": "arxiv",
    "version": 1
  }
}