Pith Number

pith:U7LSO7NY

pith:1999:U7LSO7NYYIKWEHK3CI44XUOE73

not attested not anchored not stored refs pending

Differential Equations characterising quasi-periodic Solutions of the KP hierarchy

Francisco J. Plaza Mart\'in

arxiv:math/9905026 v2 · 1999-05-05 · math.AG · math.DS

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{U7LSO7NYYIKWEHK3CI44XUOE73}

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	2026-05-18T01:09:15.147872Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a7d7277db8c215621d5b1239cbd1c4fec9cc343aea582d7984eebf9247b6d060

Aliases

arxiv: math/9905026 · arxiv_version: math/9905026v2 · doi: 10.48550/arxiv.math/9905026 · pith_short_12: U7LSO7NYYIKW · pith_short_16: U7LSO7NYYIKWEHK3 · pith_short_8: U7LSO7NY

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/U7LSO7NYYIKWEHK3CI44XUOE73 \
  | 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: a7d7277db8c215621d5b1239cbd1c4fec9cc343aea582d7984eebf9247b6d060

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4f1f2f6acf4849cccd31d8d72e28e787fcfcd371bebc1fb94f06458bdb97296b",
    "cross_cats_sorted": [
      "math.DS"
    ],
    "license": "",
    "primary_cat": "math.AG",
    "submitted_at": "1999-05-05T13:27:36Z",
    "title_canon_sha256": "b683b7b705fad8626f76bceed473d27bf34c59401e8fae73187122ab583ee0eb"
  },
  "schema_version": "1.0",
  "source": {
    "id": "math/9905026",
    "kind": "arxiv",
    "version": 2
  }
}