Pith Number

pith:TD7RV2NL

pith:2001:TD7RV2NL4ACCF5NOLLYCE27BWM

not attested not anchored not stored refs pending

True and fake Lax pairs: how to distinguish them

Sergei Sakovich

arxiv:nlin/0112027 v2 · 2001-12-18 · nlin.SI · math-ph · math.AP · 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{TD7RV2NL4ACCF5NOLLYCE27BWM}

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.

Cited by

1 paper in Pith

The gauge action on semi-discrete Lax representations and its invariants

Receipt and verification

First computed	2026-07-05T01:51:03.396908Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

98ff1ae9abe00422f5ae5af0226be1b33c93a78cfd0caebbbc207d7aa01c9805

Aliases

arxiv: nlin/0112027 · arxiv_version: nlin/0112027v2 · doi: 10.48550/arxiv.nlin/0112027 · pith_short_12: TD7RV2NL4ACC · pith_short_16: TD7RV2NL4ACCF5NO · pith_short_8: TD7RV2NL

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/TD7RV2NL4ACCF5NOLLYCE27BWM \
  | 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: 98ff1ae9abe00422f5ae5af0226be1b33c93a78cfd0caebbbc207d7aa01c9805

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c45f8e99e9616a0a592139b04f248508f04c0d902465fb00be7e06fa6f709193",
    "cross_cats_sorted": [
      "math-ph",
      "math.AP",
      "math.MP"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "nlin.SI",
    "submitted_at": "2001-12-18T11:06:04Z",
    "title_canon_sha256": "c923e1f4f75e6295000966b6b78aa45fe11bca711aade768c2d3e146387123d9"
  },
  "schema_version": "1.0",
  "source": {
    "id": "nlin/0112027",
    "kind": "arxiv",
    "version": 2
  }
}