Pith Number

pith:ZSFTQZ6I

pith:1994:ZSFTQZ6ISRHO7N4BNBBJRZ2BOU

not attested not anchored not stored refs pending

Noncommutative differential geometry with higher order derivatives

Andrzej Sitarz

arxiv:hep-th/9401146 v1 · 1994-01-28 · hep-th · math.OA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{ZSFTQZ6ISRHO7N4BNBBJRZ2BOU}

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	2026-07-04T15:57:40.637937Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

cc8b3867c8944eefb781684298e741753add427b2b228bb4384eba6bbf529486

Aliases

arxiv: hep-th/9401146 · arxiv_version: hep-th/9401146v1 · doi: 10.48550/arxiv.hep-th/9401146 · pith_short_12: ZSFTQZ6ISRHO · pith_short_16: ZSFTQZ6ISRHO7N4B · pith_short_8: ZSFTQZ6I

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/ZSFTQZ6ISRHO7N4BNBBJRZ2BOU \
  | 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: cc8b3867c8944eefb781684298e741753add427b2b228bb4384eba6bbf529486

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ea8ba040600ad32529ac89b8368180e20757cc05ea0d2449760bdede8b78da60",
    "cross_cats_sorted": [
      "math.OA"
    ],
    "license": "",
    "primary_cat": "hep-th",
    "submitted_at": "1994-01-28T10:45:49Z",
    "title_canon_sha256": "e859ee0d5f415d5625f56261ee7e27e18061002e4e8b6b459068473af7a74827"
  },
  "schema_version": "1.0",
  "source": {
    "id": "hep-th/9401146",
    "kind": "arxiv",
    "version": 1
  }
}