Pith Number

pith:PU5X7PMB

pith:2018:PU5X7PMBALEFA3MZAI3ZLHBMTC

not attested not anchored not stored refs pending

Instability of toroidal nematics

Andrea Pedrini, Epifanio G. Virga

arxiv:1804.03708 v1 · 2018-04-10 · cond-mat.soft · math-ph · math.MP

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{PU5X7PMBALEFA3MZAI3ZLHBMTC}

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	2026-05-18T00:18:45.260001Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7d3b7fbd8102c8506d990237959c2c98afa309c55f90ab493cae1489f0ab5702

Aliases

arxiv: 1804.03708 · arxiv_version: 1804.03708v1 · doi: 10.48550/arxiv.1804.03708 · pith_short_12: PU5X7PMBALEF · pith_short_16: PU5X7PMBALEFA3MZ · pith_short_8: PU5X7PMB

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/PU5X7PMBALEFA3MZAI3ZLHBMTC \
  | 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: 7d3b7fbd8102c8506d990237959c2c98afa309c55f90ab493cae1489f0ab5702

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "50ed5b56405ab7318197c1619e3e97542c90bc487c607ff29860fd94bc8bcfd1",
    "cross_cats_sorted": [
      "math-ph",
      "math.MP"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cond-mat.soft",
    "submitted_at": "2018-04-10T20:33:32Z",
    "title_canon_sha256": "084c631d0d31e04e4233c1189f4dd815b10b9845da9b22afa33bef500b139f47"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1804.03708",
    "kind": "arxiv",
    "version": 1
  }
}