Pith Number

pith:ZP72GZE5

pith:2009:ZP72GZE5D4OT7A7XNHAHPLWGWP

not attested not anchored not stored refs pending

Material properties of of Caenorhabditis elegans swimming at low Reynolds number

Josue Sznitman, Paulo E. Arratia, Prashant K. Purohit, Predrag Krajacic, Todd Lamitina

arxiv:0911.1731 v1 · 2009-11-09 · physics.bio-ph · physics.flu-dyn

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{ZP72GZE5D4OT7A7XNHAHPLWGWP}

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	2026-05-18T00:39:05.215675Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

cbffa3649d1f1d3f83f769c077aec6b3c3cb725ad24448366d40230ae0766460

Aliases

arxiv: 0911.1731 · arxiv_version: 0911.1731v1 · doi: 10.48550/arxiv.0911.1731 · pith_short_12: ZP72GZE5D4OT · pith_short_16: ZP72GZE5D4OT7A7X · pith_short_8: ZP72GZE5

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/ZP72GZE5D4OT7A7XNHAHPLWGWP \
  | 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: cbffa3649d1f1d3f83f769c077aec6b3c3cb725ad24448366d40230ae0766460

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1a0ec44238b3c8001081bf184abbd50750a7cffa27c9a9b7845d6c263625d445",
    "cross_cats_sorted": [
      "physics.flu-dyn"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.bio-ph",
    "submitted_at": "2009-11-09T17:16:50Z",
    "title_canon_sha256": "7b6bd11986faca9707bf07a4afb5cf15fbd71f9ffb614acc7086d07e12aa2f5a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0911.1731",
    "kind": "arxiv",
    "version": 1
  }
}