Pith Number

pith:4KK7SKUL

pith:2026:4KK7SKULE2W42BZIKNYP5CL2XD

not attested not anchored not stored refs pending

Epithelia Realize Nematopolar Topological Defect Structures

Amin Doostmohammadi, Farzan Vafa, Niels de Graaf Sousa, Tianxiang Ma, Valeriia Grudtsyna

arxiv:2606.19844 v1 · 2026-06-18 · cond-mat.soft · 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{4KK7SKULE2W42BZIKNYP5CL2XD}

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	2026-06-19T16:12:36.779113Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e295f92a8b26adcd07285370fe897ab8f7db08f7c47c366469aaf0d6a3a24cb1

Aliases

arxiv: 2606.19844 · arxiv_version: 2606.19844v1 · doi: 10.48550/arxiv.2606.19844 · pith_short_12: 4KK7SKULE2W4 · pith_short_16: 4KK7SKULE2W42BZI · pith_short_8: 4KK7SKUL

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/4KK7SKULE2W42BZIKNYP5CL2XD \
  | 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: e295f92a8b26adcd07285370fe897ab8f7db08f7c47c366469aaf0d6a3a24cb1

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a6a712ebac270a2740a61c9b16c2b167bcd43bae7c910512ffc54d1ae4980b46",
    "cross_cats_sorted": [
      "physics.bio-ph"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cond-mat.soft",
    "submitted_at": "2026-06-18T06:49:13Z",
    "title_canon_sha256": "ce4424f4ec0be425c317cf17230067c122b39b6ba46fe1895446f4977d65b014"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2606.19844",
    "kind": "arxiv",
    "version": 1
  }
}