Pith Number

pith:EH2W5A6E

pith:2026:EH2W5A6ENASTGNUEY7YAEV5UGR

not attested not anchored not stored refs pending

Chern numbers in quantum graphs

Boris Gutkin, Omri Gat, Or Swartzberg

arxiv:2605.25899 v1 · 2026-05-25 · 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{EH2W5A6ENASTGNUEY7YAEV5UGR}

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	2026-05-26T02:05:17.484907Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

21f56e83c46825333684c7f00257b43454c6b80198bc1c2177ccdc6845ab5394

Aliases

arxiv: 2605.25899 · arxiv_version: 2605.25899v1 · doi: 10.48550/arxiv.2605.25899 · pith_short_12: EH2W5A6ENAST · pith_short_16: EH2W5A6ENASTGNUE · pith_short_8: EH2W5A6E

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/EH2W5A6ENASTGNUEY7YAEV5UGR \
  | 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: 21f56e83c46825333684c7f00257b43454c6b80198bc1c2177ccdc6845ab5394

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e993062f12dcd156bfd001e58f3b890847a435878c3c8e7147521bd2520f7537",
    "cross_cats_sorted": [
      "math.MP"
    ],
    "license": "http://creativecommons.org/licenses/by-nc-nd/4.0/",
    "primary_cat": "math-ph",
    "submitted_at": "2026-05-25T14:26:09Z",
    "title_canon_sha256": "d7802e55ecded9046fcf4fe52e37284948e07a05ecda1a06fb517662375dbe51"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2605.25899",
    "kind": "arxiv",
    "version": 1
  }
}