Pith Number

pith:SBXXEZ4L

pith:2026:SBXXEZ4LSBBMOPZKXXKBMF576P

not attested not anchored not stored refs pending

Fermion Families and Pontryagin Class: Topological Field Theory via Colour Symmetry Extension

Juven Wang, Shing-Tung Yau, Zheyan Wan

arxiv:2605.26202 v1 · 2026-05-25 · hep-th

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{SBXXEZ4LSBBMOPZKXXKBMF576P}

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	2026-05-27T00:04:28.610696Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

906f72678b9042c73f2abdd41617bff3efa6acd3abb3c1fa297446e9dfcd3976

Aliases

arxiv: 2605.26202 · arxiv_version: 2605.26202v1 · doi: 10.48550/arxiv.2605.26202 · pith_short_12: SBXXEZ4LSBBM · pith_short_16: SBXXEZ4LSBBMOPZK · pith_short_8: SBXXEZ4L

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/SBXXEZ4LSBBMOPZKXXKBMF576P \
  | 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: 906f72678b9042c73f2abdd41617bff3efa6acd3abb3c1fa297446e9dfcd3976

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f0acf8018a55773c8680fbd682e88490a20483dc520715d6d252ff34cab37954",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "hep-th",
    "submitted_at": "2026-05-25T17:59:57Z",
    "title_canon_sha256": "5f6dc5b001ca59909372a512d80f18981964868b5c9943a526d5825bc1023a46"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2605.26202",
    "kind": "arxiv",
    "version": 1
  }
}