Pith Number

pith:NEFMYJD2

pith:2000:NEFMYJD26MTJKJKZCWGKNTVLVH

not attested not anchored not stored refs pending

Backlund transformations for finite-dimensional integrable systems: a geometric approach

P. Vanhaecke, V. Kuznetsov

arxiv:nlin/0004003 v1 · 2000-04-02 · nlin.SI · hep-th · math-ph · math.AG · 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{NEFMYJD26MTJKJKZCWGKNTVLVH}

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	2026-05-18T01:38:22.100304Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

690acc247af326952559158ca6ceaba9db843642af41ee00d0aea6b3de2cb415

Aliases

arxiv: nlin/0004003 · arxiv_version: nlin/0004003v1 · doi: 10.48550/arxiv.nlin/0004003 · pith_short_12: NEFMYJD26MTJ · pith_short_16: NEFMYJD26MTJKJKZ · pith_short_8: NEFMYJD2

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/NEFMYJD26MTJKJKZCWGKNTVLVH \
  | 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: 690acc247af326952559158ca6ceaba9db843642af41ee00d0aea6b3de2cb415

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d0a67abf92c9c98ddb2b1d21e0b3202aabd24cea9b804d233d86ace72a260a5b",
    "cross_cats_sorted": [
      "hep-th",
      "math-ph",
      "math.AG",
      "math.MP"
    ],
    "license": "",
    "primary_cat": "nlin.SI",
    "submitted_at": "2000-04-02T17:19:59Z",
    "title_canon_sha256": "dbceae36e3af2cb55e49309bedd70000532dde748b29ff09963e519df354d934"
  },
  "schema_version": "1.0",
  "source": {
    "id": "nlin/0004003",
    "kind": "arxiv",
    "version": 1
  }
}