Pith Number

pith:52BYHWIS

pith:1999:52BYHWISECCAUBPLDT67ZSK2VZ

not attested not anchored not stored refs pending

N=2 Hamiltonians with sl(2) coalgebra symmetry and their integrable deformations

A. Ballesteros, O. Ragnisco

arxiv:solv-int/9910009 v1 · 1999-10-18 · solv-int · nlin.SI

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{52BYHWISECCAUBPLDT67ZSK2VZ}

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	2026-07-04T14:47:33.909663Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ee8383d91220840a05eb1cfdfcc95aae40e461abb45c124208b194b7426cccb4

Aliases

arxiv: solv-int/9910009 · arxiv_version: solv-int/9910009v1 · doi: 10.48550/arxiv.solv-int/9910009 · pith_short_12: 52BYHWISECCA · pith_short_16: 52BYHWISECCAUBPL · pith_short_8: 52BYHWIS

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/52BYHWISECCAUBPLDT67ZSK2VZ \
  | 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: ee8383d91220840a05eb1cfdfcc95aae40e461abb45c124208b194b7426cccb4

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b971b877c3ee4dd43a7587ea002dd749ffa0afbbe2695b421357126e0e5561eb",
    "cross_cats_sorted": [
      "nlin.SI"
    ],
    "license": "",
    "primary_cat": "solv-int",
    "submitted_at": "1999-10-18T16:30:25Z",
    "title_canon_sha256": "f2eac6afce3138eb10081a04c733349a44250f73bc87fb9ade6eff57fbc3f020"
  },
  "schema_version": "1.0",
  "source": {
    "id": "solv-int/9910009",
    "kind": "arxiv",
    "version": 1
  }
}