Pith Number

pith:DWERBC2Q

pith:2018:DWERBC2QAHQHW6QTMV5DT4WXP5

not attested not anchored not stored refs pending

Diffusion vs. direct transport in the precision of morphogen readout

Andrew Mugler, Sean Fancher

arxiv:1806.08318 v2 · 2018-06-21 · physics.bio-ph · q-bio.CB

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{DWERBC2QAHQHW6QTMV5DT4WXP5}

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	2026-05-18T00:12:31.340126Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1d89108b5001e07b7a13657a39f2d77f4567888be0648a2369e60d375b44807a

Aliases

arxiv: 1806.08318 · arxiv_version: 1806.08318v2 · doi: 10.48550/arxiv.1806.08318 · pith_short_12: DWERBC2QAHQH · pith_short_16: DWERBC2QAHQHW6QT · pith_short_8: DWERBC2Q

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/DWERBC2QAHQHW6QTMV5DT4WXP5 \
  | 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: 1d89108b5001e07b7a13657a39f2d77f4567888be0648a2369e60d375b44807a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9882798aaaf4ac59043a2ff702546b89848520dd85f8eabc16302247f66783b7",
    "cross_cats_sorted": [
      "q-bio.CB"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.bio-ph",
    "submitted_at": "2018-06-21T16:56:38Z",
    "title_canon_sha256": "0ae14dac79ea2e65fcd2bbf3318f750cc1e3ea415446f2d5eaf01994fe5a1c61"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1806.08318",
    "kind": "arxiv",
    "version": 2
  }
}