Pith Number

pith:KWIFNZUG

pith:1996:KWIFNZUG6PZXNXBMZCIJEIFHTO

not attested not anchored not stored refs pending

Higher-Dimensional Algebra II: 2-Hilbert Spaces

John C. Baez

arxiv:q-alg/9609018 v2 · 1996-09-17 · q-alg · 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{KWIFNZUG6PZXNXBMZCIJEIFHTO}

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.

Cited by

1 paper in Pith

Unitary Categorical Symmetries

Receipt and verification

First computed	2026-07-04T15:08:18.831235Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

559056e686f3f376dc2cc8909220a79b97b7ec87fa5addf1219629fedb00fd5b

Aliases

arxiv: q-alg/9609018 · arxiv_version: q-alg/9609018v2 · doi: 10.48550/arxiv.q-alg/9609018 · pith_short_12: KWIFNZUG6PZX · pith_short_16: KWIFNZUG6PZXNXBM · pith_short_8: KWIFNZUG

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/KWIFNZUG6PZXNXBMZCIJEIFHTO \
  | 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: 559056e686f3f376dc2cc8909220a79b97b7ec87fa5addf1219629fedb00fd5b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f73e472b702fc084f21ef0b057332cec8c8e7405895fb3a29a3231f2bb92199c",
    "cross_cats_sorted": [
      "math.QA"
    ],
    "license": "",
    "primary_cat": "q-alg",
    "submitted_at": "1996-09-17T16:43:09Z",
    "title_canon_sha256": "aa2dcab685b8398d58dff6534a3e403ae1e39acc5ec9af698721afb8421390f0"
  },
  "schema_version": "1.0",
  "source": {
    "id": "q-alg/9609018",
    "kind": "arxiv",
    "version": 2
  }
}