Pith Number

pith:7UEQ7DFT

pith:2011:7UEQ7DFTBPSQXHQYCBP5UJ3VJB

not attested not anchored not stored refs pending

A higher category of cobordisms and topological quantum field theory

Alexander A. Voronov (University of Minnesota, IPMU), Mark Feshbach (University of Minnesota)

arxiv:1108.3349 v2 · 2011-08-16 · math.QA · math.AT · math.CT

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{7UEQ7DFTBPSQXHQYCBP5UJ3VJB}

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	2026-05-18T04:14:44.753463Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

fd090f8cb30be50b9e18105fda2775485ee6ac248e09427a794058238f9b8d4c

Aliases

arxiv: 1108.3349 · arxiv_version: 1108.3349v2 · doi: 10.48550/arxiv.1108.3349 · pith_short_12: 7UEQ7DFTBPSQ · pith_short_16: 7UEQ7DFTBPSQXHQY · pith_short_8: 7UEQ7DFT

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/7UEQ7DFTBPSQXHQYCBP5UJ3VJB \
  | 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: fd090f8cb30be50b9e18105fda2775485ee6ac248e09427a794058238f9b8d4c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "be1edbd34e7e2a3eb728b48c14d7ca68d9b93c659a68b5aba2314ffcc16fa47b",
    "cross_cats_sorted": [
      "math.AT",
      "math.CT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.QA",
    "submitted_at": "2011-08-16T20:45:00Z",
    "title_canon_sha256": "d030bfcf8bc82517ad621eb97c642a03199e6b8ca0d767b9e0e8f3dd617dd5ee"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1108.3349",
    "kind": "arxiv",
    "version": 2
  }
}