Pith Number

pith:3YDNOSNP

pith:2009:3YDNOSNPI64QEFJRHELR5QGQ5J

not attested not anchored not stored refs pending

A Prehistory of n-Categorical Physics

Aaron Lauda, John C. Baez

arxiv:0908.2469 v1 · 2009-08-18 · hep-th · gr-qc · math.CT · math.QA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{3YDNOSNPI64QEFJRHELR5QGQ5J}

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	2026-05-18T03:58:03.390519Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

de06d749af47b902153139171ec0d0ea4b7b5015e36801984027782a721942bf

Aliases

arxiv: 0908.2469 · arxiv_version: 0908.2469v1 · doi: 10.48550/arxiv.0908.2469 · pith_short_12: 3YDNOSNPI64Q · pith_short_16: 3YDNOSNPI64QEFJR · pith_short_8: 3YDNOSNP

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/3YDNOSNPI64QEFJRHELR5QGQ5J \
  | 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: de06d749af47b902153139171ec0d0ea4b7b5015e36801984027782a721942bf

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4dbd0601e10808bf509dd1e5d4d881ee0d74e8783f5c0dc5b95fa8e4ddae9903",
    "cross_cats_sorted": [
      "gr-qc",
      "math.CT",
      "math.QA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "hep-th",
    "submitted_at": "2009-08-18T00:47:18Z",
    "title_canon_sha256": "226509636db8c535a97ab023cd88897186577e45231bad1c165722e796c5ec81"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0908.2469",
    "kind": "arxiv",
    "version": 1
  }
}