Pith Number

pith:PNFXAHM2

pith:2026:PNFXAHM2UWH66YXAVLUKIJMJGG

not attested not anchored not stored refs pending

Defect Kinematics in 2D Nematics: Contributions from Surface Topology, Intrinsic and Extrinsic Geometry, Solitons, Defect Orientations, and Elastic Anisotropy

Joseph Pollard, Richard G. Morris

arxiv:2605.21855 v1 · 2026-05-21 · cond-mat.soft

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{PNFXAHM2UWH66YXAVLUKIJMJGG}

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	2026-05-22T01:04:11.501263Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7b4b701d9aa58fef62e0aae8a4258931a2e79942b8af4f9cd98733fbe24dedb3

Aliases

arxiv: 2605.21855 · arxiv_version: 2605.21855v1 · doi: 10.48550/arxiv.2605.21855 · pith_short_12: PNFXAHM2UWH6 · pith_short_16: PNFXAHM2UWH66YXA · pith_short_8: PNFXAHM2

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/PNFXAHM2UWH66YXAVLUKIJMJGG \
  | 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: 7b4b701d9aa58fef62e0aae8a4258931a2e79942b8af4f9cd98733fbe24dedb3

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "877c49c7f44e5c8a1899505ec766377b380bb0a2695b453e3378eb46658ae423",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cond-mat.soft",
    "submitted_at": "2026-05-21T01:05:09Z",
    "title_canon_sha256": "fddd5061c500ff214dda512d1627aee5c573c8f26a8084250c4e49cc2823b041"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2605.21855",
    "kind": "arxiv",
    "version": 1
  }
}