Pith Number

pith:U6P4RE4F

pith:1999:U6P4RE4FTAC66IOVT6RXJFIBC4

not attested not anchored not stored refs pending

Completely integrable systems: a generalization

Dmitry Alekseevsky, Giuseppe Marmo, Janusz Grabowksi, Peter W. Michor

arxiv:math/9906202 v2 · 1999-06-29 · math.SG

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{U6P4RE4FTAC66IOVT6RXJFIBC4}

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	2026-05-18T01:38:22.479012Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a79fc893859805ef21d59fa37495011727f1e47b55789e0cfe19bd159ea4c979

Aliases

arxiv: math/9906202 · arxiv_version: math/9906202v2 · doi: 10.48550/arxiv.math/9906202 · pith_short_12: U6P4RE4FTAC6 · pith_short_16: U6P4RE4FTAC66IOV · pith_short_8: U6P4RE4F

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/U6P4RE4FTAC66IOVT6RXJFIBC4 \
  | 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: a79fc893859805ef21d59fa37495011727f1e47b55789e0cfe19bd159ea4c979

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c671f9bba80cf10750fe179324c833b3f0c6e4f2dc28bc95a78e52aefef0534b",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "math.SG",
    "submitted_at": "1999-06-29T13:18:13Z",
    "title_canon_sha256": "6c6a2d45858666d1d9c380b283b8d2b5fc171dff3a7469155c09625876c31c0f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "math/9906202",
    "kind": "arxiv",
    "version": 2
  }
}