Pith Number

pith:NNQDD2XH

pith:1998:NNQDD2XHYAI2KG7M2FQA7J4LYE

not attested not anchored not stored refs pending

Reduction of quantum systems with arbitrary first class constraints and Hecke algebras

A. Sevostyanov

arxiv:math/9805134 v2 · 1998-05-28 · math.QA · hep-th · math.AC · 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{NNQDD2XHYAI2KG7M2FQA7J4LYE}

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	2026-07-04T16:10:09.789277Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6b6031eae7c011a51becd1600fa78bc106e7124d06300a3186919b0669d959df

Aliases

arxiv: math/9805134 · arxiv_version: math/9805134v2 · doi: 10.48550/arxiv.math/9805134 · pith_short_12: NNQDD2XHYAI2 · pith_short_16: NNQDD2XHYAI2KG7M · pith_short_8: NNQDD2XH

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/NNQDD2XHYAI2KG7M2FQA7J4LYE \
  | 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: 6b6031eae7c011a51becd1600fa78bc106e7124d06300a3186919b0669d959df

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8aafbc4744d7df16944014bb1fb1de57d078f442237f8a2fecf5a1ca4ecc0d1e",
    "cross_cats_sorted": [
      "hep-th",
      "math.AC",
      "math.CT"
    ],
    "license": "",
    "primary_cat": "math.QA",
    "submitted_at": "1998-05-28T13:42:32Z",
    "title_canon_sha256": "23b09427e79cbb48a1f793fa9a2591211b1abb7735d55a3a4e656b7ee8b6cc50"
  },
  "schema_version": "1.0",
  "source": {
    "id": "math/9805134",
    "kind": "arxiv",
    "version": 2
  }
}