Pith Number

pith:4S6T2ETZ

pith:1997:4S6T2ETZ3N6TLIR2IKWARLXF2L

not attested not anchored not stored refs pending

Factorization of differential operators, quasideterminants, and nonabelian Toda field equations

Israel Gelfand, Pavel Etingof, Vladimir Retakh

arxiv:q-alg/9701008 v2 · 1997-01-09 · q-alg · hep-th · math.QA · nlin.SI · solv-int

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{4S6T2ETZ3N6TLIR2IKWARLXF2L}

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	2026-07-04T15:08:19.169918Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e4bd3d1279db7d35a23a42ac08aee5d2fead0601e8b00276f3ba3936cd008238

Aliases

arxiv: q-alg/9701008 · arxiv_version: q-alg/9701008v2 · doi: 10.48550/arxiv.q-alg/9701008 · pith_short_12: 4S6T2ETZ3N6T · pith_short_16: 4S6T2ETZ3N6TLIR2 · pith_short_8: 4S6T2ETZ

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/4S6T2ETZ3N6TLIR2IKWARLXF2L \
  | 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: e4bd3d1279db7d35a23a42ac08aee5d2fead0601e8b00276f3ba3936cd008238

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ceb431804de72e1f147b6e2988fe5d1ef5585d065179fd5081cec079db259c76",
    "cross_cats_sorted": [
      "hep-th",
      "math.QA",
      "nlin.SI",
      "solv-int"
    ],
    "license": "",
    "primary_cat": "q-alg",
    "submitted_at": "1997-01-09T00:11:50Z",
    "title_canon_sha256": "dc3320b5e9a974803d3ed21cc4ce13f3932840645e649d0559c98e5621e29b62"
  },
  "schema_version": "1.0",
  "source": {
    "id": "q-alg/9701008",
    "kind": "arxiv",
    "version": 2
  }
}