Pith Number

pith:NEP4CNRU

pith:1999:NEP4CNRUL3GTSC56EE6ESB5D62

not attested not anchored not stored refs pending

A new differential calculus on noncommutative spaces

A. K. Mishra, G. Rajasekaran, R. P. Malik

arxiv:math-ph/9908001 v1 · 1999-08-01 · math-ph · math.MP

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{NEP4CNRUL3GTSC56EE6ESB5D62}

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	2026-07-04T14:34:10.914835Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

691fc136345ecd390bbe213c4907a3f6b60c6e03d920482e9d54615706977f0c

Aliases

arxiv: math-ph/9908001 · arxiv_version: math-ph/9908001v1 · doi: 10.48550/arxiv.math-ph/9908001 · pith_short_12: NEP4CNRUL3GT · pith_short_16: NEP4CNRUL3GTSC56 · pith_short_8: NEP4CNRU

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/NEP4CNRUL3GTSC56EE6ESB5D62 \
  | 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: 691fc136345ecd390bbe213c4907a3f6b60c6e03d920482e9d54615706977f0c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ceaf38016cb8e28428982128a589a70631c830bf31b690925ee3fc84df068c2b",
    "cross_cats_sorted": [
      "math.MP"
    ],
    "license": "",
    "primary_cat": "math-ph",
    "submitted_at": "1999-08-01T02:06:05Z",
    "title_canon_sha256": "96c7ae3e11783e4ef27796a97097b259926c05ff711a6ba6184a0ca30f48578f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "math-ph/9908001",
    "kind": "arxiv",
    "version": 1
  }
}