Pith Number

pith:33XKGYHQ

pith:2018:33XKGYHQQIU4M2FSEDUX6LFEOY

not attested not anchored not stored refs pending

Surface curvature guides early construction activity in mound-building termites

Daniel S. Calovi, J. Scott Turner, Justin Werfel, Nicole Carey, Paul Bardunias, Radhika Nagpal

arxiv:1812.07047 v1 · 2018-12-17 · q-bio.QM · physics.bio-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{33XKGYHQQIU4M2FSEDUX6LFEOY}

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	2026-05-17T23:46:18.989608Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

deeea360f08229c668b220e97f2ca47630214d6b588c259506cecd4bd590f2c5

Aliases

arxiv: 1812.07047 · arxiv_version: 1812.07047v1 · doi: 10.48550/arxiv.1812.07047 · pith_short_12: 33XKGYHQQIU4 · pith_short_16: 33XKGYHQQIU4M2FS · pith_short_8: 33XKGYHQ

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/33XKGYHQQIU4M2FSEDUX6LFEOY \
  | 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: deeea360f08229c668b220e97f2ca47630214d6b588c259506cecd4bd590f2c5

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f6e0d55f031281ee5639f6b77ddd87c6b6f01a5ef8023ef5570a22cd3d74ff36",
    "cross_cats_sorted": [
      "physics.bio-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "q-bio.QM",
    "submitted_at": "2018-12-17T20:51:06Z",
    "title_canon_sha256": "ef0c5fd7d499527890174f13a77bcc42e63010a378789fa98122db5680cd6045"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1812.07047",
    "kind": "arxiv",
    "version": 1
  }
}