Pith Number

pith:SWWE2W75

pith:2009:SWWE2W75PNDXHF5VFUTK2JLQFW

not attested not anchored not stored refs pending

Differential invariants for cubic integrals of geodesic flows on surfaces

Vladimir S. Matveev, Vsevolod V. Shevchishin

arxiv:0909.3398 v1 · 2009-09-18 · math.DG · math-ph · math.MP · 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{SWWE2W75PNDXHF5VFUTK2JLQFW}

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	2026-05-18T03:36:05.221960Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

95ac4d5bfd7b477397b52d26ad25702d8e5ca92c6210dc6816842b92a9fedd18

Aliases

arxiv: 0909.3398 · arxiv_version: 0909.3398v1 · doi: 10.48550/arxiv.0909.3398 · pith_short_12: SWWE2W75PNDX · pith_short_16: SWWE2W75PNDXHF5V · pith_short_8: SWWE2W75

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/SWWE2W75PNDXHF5VFUTK2JLQFW \
  | 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: 95ac4d5bfd7b477397b52d26ad25702d8e5ca92c6210dc6816842b92a9fedd18

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "72cc911639f5ec363e8a18bcf302a1e8c9f9fb6f26b9c3f8a9ac5c71d625334e",
    "cross_cats_sorted": [
      "math-ph",
      "math.MP",
      "nlin.SI"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.DG",
    "submitted_at": "2009-09-18T09:33:40Z",
    "title_canon_sha256": "4a6d79ada48beb84f59cb897733620c17691b3c34fe5471a3ebff471a6de9769"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0909.3398",
    "kind": "arxiv",
    "version": 1
  }
}