Pith Number

pith:4RQKKCFX

pith:2007:4RQKKCFXJ7NOWSTYKNSOMAC26N

not attested not anchored not stored refs pending

Non-equilibrium microtubule fluctuations in a model cytoskeleton

C. P. Brangwynne, D. A. Weitz, F. C. MacKintosh, G. H. Koenderink

arxiv:0709.2952 v1 · 2007-09-19 · cond-mat.soft · cond-mat.stat-mech · q-bio.SC

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{4RQKKCFXJ7NOWSTYKNSOMAC26N}

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	2026-07-04T17:05:46.176175Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e460a508b74fdaeb4a785364e6005af3563873aeaca68c3411204f33469b7601

Aliases

arxiv: 0709.2952 · arxiv_version: 0709.2952v1 · doi: 10.48550/arxiv.0709.2952 · pith_short_12: 4RQKKCFXJ7NO · pith_short_16: 4RQKKCFXJ7NOWSTY · pith_short_8: 4RQKKCFX

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/4RQKKCFXJ7NOWSTYKNSOMAC26N \
  | 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: e460a508b74fdaeb4a785364e6005af3563873aeaca68c3411204f33469b7601

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b08beb1baf08dbf96456881503d84f3fc8fbc5399bc6a0df760b81ad5c3c9ddb",
    "cross_cats_sorted": [
      "cond-mat.stat-mech",
      "q-bio.SC"
    ],
    "license": "",
    "primary_cat": "cond-mat.soft",
    "submitted_at": "2007-09-19T19:58:32Z",
    "title_canon_sha256": "56bbbc4b68babff682fcbd1ded80006fc0f70036e242322188d9bdd9691fa9b6"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0709.2952",
    "kind": "arxiv",
    "version": 1
  }
}