Pith Number

pith:CZZCA5PF

pith:2003:CZZCA5PFTGCTPA2WDMTL2K5WHF

not attested not anchored not stored refs pending

2-cosemisimplicial objects in a 2-category, permutohedra and deformations of pseudofunctors

Josep Elgueta

arxiv:math/0309066 v2 · 2003-09-04 · math.QA · 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{CZZCA5PFTGCTPA2WDMTL2K5WHF}

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	2026-05-18T03:16:06.876339Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

16722075e599853783561b26bd2bb639547817112b55651348d4db8e03d99cb1

Aliases

arxiv: math/0309066 · arxiv_version: math/0309066v2 · doi: 10.48550/arxiv.math/0309066 · pith_short_12: CZZCA5PFTGCT · pith_short_16: CZZCA5PFTGCTPA2W · pith_short_8: CZZCA5PF

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/CZZCA5PFTGCTPA2WDMTL2K5WHF \
  | 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: 16722075e599853783561b26bd2bb639547817112b55651348d4db8e03d99cb1

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8a257b64d033615bb534382fb84a896c86775abbde674921af9280bec178d484",
    "cross_cats_sorted": [
      "math.CT"
    ],
    "license": "",
    "primary_cat": "math.QA",
    "submitted_at": "2003-09-04T12:07:13Z",
    "title_canon_sha256": "39b4f90b868f95e2c2c906026b88d23bd143a548ec920a7a90381e16dc7ec583"
  },
  "schema_version": "1.0",
  "source": {
    "id": "math/0309066",
    "kind": "arxiv",
    "version": 2
  }
}