Pith Number

pith:B3EWYG7J

pith:2017:B3EWYG7JVCBU5RNOMOT7WVLETD

not attested not anchored not stored refs pending

Lectures on Feynman categories

Ralph M. Kaufmann

arxiv:1702.06843 v1 · 2017-02-22 · math.AT · math-ph · math.AG · 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{B3EWYG7JVCBU5RNOMOT7WVLETD}

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	2026-05-18T00:43:15.669381Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0ec96c1be9a8834ec5ae63a7fb556498f1f7319d49f9c3068bee8d5378cb17cd

Aliases

arxiv: 1702.06843 · arxiv_version: 1702.06843v1 · doi: 10.48550/arxiv.1702.06843 · pith_short_12: B3EWYG7JVCBU · pith_short_16: B3EWYG7JVCBU5RNO · pith_short_8: B3EWYG7J

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/B3EWYG7JVCBU5RNOMOT7WVLETD \
  | 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: 0ec96c1be9a8834ec5ae63a7fb556498f1f7319d49f9c3068bee8d5378cb17cd

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d0b93b4a2b988f0d4e7bda9422d30b7a2eb9e3e87e9f6a2a700a292b64f33a32",
    "cross_cats_sorted": [
      "math-ph",
      "math.AG",
      "math.CT",
      "math.MP"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AT",
    "submitted_at": "2017-02-22T15:29:14Z",
    "title_canon_sha256": "6927a07f8553715691f6859db145ed185c7659f1bc383292dc4a328fe4ee9b04"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1702.06843",
    "kind": "arxiv",
    "version": 1
  }
}