Pith Number

pith:WQZ5VDDW

pith:2026:WQZ5VDDWVYGD5E36KIBYVPD5XB

not attested not anchored not stored refs pending

Vanishing spin stiffness in weakly disordered two-dimensional Heisenberg ferromagnets

Aldo Coraggio, Antonello Scardicchio, Giacomo Bracci-Testasecca, Jacopo Niedda

arxiv:2607.20036 v1 · 2026-07-22 · cond-mat.dis-nn

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{WQZ5VDDWVYGD5E36KIBYVPD5XB}

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	2026-07-23T01:24:56.679948Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b433da8c76ae0c3e937e52038abc7db84c94fde4ebee9ce280e75f59407eaafb

Aliases

arxiv: 2607.20036 · arxiv_version: 2607.20036v1 · doi: 10.48550/arxiv.2607.20036 · pith_short_12: WQZ5VDDWVYGD · pith_short_16: WQZ5VDDWVYGD5E36 · pith_short_8: WQZ5VDDW

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/WQZ5VDDWVYGD5E36KIBYVPD5XB \
  | 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: b433da8c76ae0c3e937e52038abc7db84c94fde4ebee9ce280e75f59407eaafb

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0b9254a2a4adf52b2d3ed50096a61204dffa15b5e99882135717a8b2cd434023",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cond-mat.dis-nn",
    "submitted_at": "2026-07-22T11:23:34Z",
    "title_canon_sha256": "1dbb22d3d959e7054256b4331e08bdd411973323a4873eddd2d43bd3fc8224f7"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2607.20036",
    "kind": "arxiv",
    "version": 1
  }
}