Pith Number

pith:2FZEW7NT

pith:2008:2FZEW7NTT7RLO33DMACLWQQABM

not attested not anchored not stored refs pending

Infinite-Dimensional Representations of 2-Groups

Aristide Baratin, Derek K. Wise, John C. Baez, Laurent Freidel

arxiv:0812.4969 v2 · 2008-12-29 · math.QA · math-ph · math.CT · 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{2FZEW7NTT7RLO33DMACLWQQABM}

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	2026-05-18T03:25:35.433904Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d1724b7db39fe2b76f636004bb42000b0a51c7e7b04d6928cc9cafb9d1038b31

Aliases

arxiv: 0812.4969 · arxiv_version: 0812.4969v2 · doi: 10.48550/arxiv.0812.4969 · pith_short_12: 2FZEW7NTT7RL · pith_short_16: 2FZEW7NTT7RLO33D · pith_short_8: 2FZEW7NT

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/2FZEW7NTT7RLO33DMACLWQQABM \
  | 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: d1724b7db39fe2b76f636004bb42000b0a51c7e7b04d6928cc9cafb9d1038b31

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "00073d9ce5b5be69e5d6f707ed8010c32532168e024d0787daf1a4d1de35ec2c",
    "cross_cats_sorted": [
      "math-ph",
      "math.CT",
      "math.MP"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.QA",
    "submitted_at": "2008-12-29T20:43:55Z",
    "title_canon_sha256": "f171a0c049e14ed2d680732c05981c4307050a89db194d9f9792f6d98b62a42e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0812.4969",
    "kind": "arxiv",
    "version": 2
  }
}