Pith Number

pith:LETBN7BJ

pith:2002:LETBN7BJP2Z2WD7EOFUJH4JSWB

not attested not anchored not stored refs pending

Homotopy Quantum Field Theories and Related Ideas

M. Brightwell, P. Turner, S. Willerton

arxiv:math/0202066 v2 · 2002-02-07 · math.AT · 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{LETBN7BJP2Z2WD7EOFUJH4JSWB}

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	2026-05-18T01:38:29.675967Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

592616fc297eb3ab0fe4716893f132b07598ef65cab1946bd3247c24e014edb6

Aliases

arxiv: math/0202066 · arxiv_version: math/0202066v2 · doi: 10.48550/arxiv.math/0202066 · pith_short_12: LETBN7BJP2Z2 · pith_short_16: LETBN7BJP2Z2WD7E · pith_short_8: LETBN7BJ

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/LETBN7BJP2Z2WD7EOFUJH4JSWB \
  | 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: 592616fc297eb3ab0fe4716893f132b07598ef65cab1946bd3247c24e014edb6

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2c75abfedb91360a4cd30700734f57c5fd840ebdbebc7d501bf996dc73f31179",
    "cross_cats_sorted": [
      "math.QA"
    ],
    "license": "",
    "primary_cat": "math.AT",
    "submitted_at": "2002-02-07T18:38:42Z",
    "title_canon_sha256": "84ca6b488e8c2b65837a6e185205afac9aefecce19268a7abb9faae91d41757d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "math/0202066",
    "kind": "arxiv",
    "version": 2
  }
}