Pith Number

pith:OY2ILNOA

pith:2011:OY2ILNOALLVYRBC2QTNU2PKM7W

not attested not anchored not stored refs pending

A new estimate on Evans' Weak KAM approach

F. Cardin, M. Guzzo, O. Bernardi

arxiv:1109.3289 v2 · 2011-09-15 · math.DS · math-ph · 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{OY2ILNOALLVYRBC2QTNU2PKM7W}

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	2026-05-18T03:38:05.135543Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

763485b5c05aeb88845a84db4d3d4cfd86bb6f7447d1ec88c3f3785c20219b1f

Aliases

arxiv: 1109.3289 · arxiv_version: 1109.3289v2 · doi: 10.48550/arxiv.1109.3289 · pith_short_12: OY2ILNOALLVY · pith_short_16: OY2ILNOALLVYRBC2 · pith_short_8: OY2ILNOA

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/OY2ILNOALLVYRBC2QTNU2PKM7W \
  | 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: 763485b5c05aeb88845a84db4d3d4cfd86bb6f7447d1ec88c3f3785c20219b1f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f30f2a28f789ee050238a9ac098d3ef39893eebe78f1fb8efb14b40fc93886e2",
    "cross_cats_sorted": [
      "math-ph",
      "math.MP"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.DS",
    "submitted_at": "2011-09-15T08:45:14Z",
    "title_canon_sha256": "d73d0edbccdac324c5f7428c982c89bb1ddfff46ca166659dcdc83c1f8d6710e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1109.3289",
    "kind": "arxiv",
    "version": 2
  }
}