Pith Number

pith:ZWYJJE6K

pith:2008:ZWYJJE6KCZXOZ5EH3A7YDRNS64

not attested not anchored not stored refs pending

A Proof On Arnold-Chekanov Conjecture

Renyi Ma

arxiv:0809.3105 v6 · 2008-09-18 · math.GM

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{ZWYJJE6KCZXOZ5EH3A7YDRNS64}

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	2026-05-18T03:13:11.267432Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

cdb09493ca166eecf487d83f81c5b2f707ef8bdaeef121c6cbd6a6913bd2542c

Aliases

arxiv: 0809.3105 · arxiv_version: 0809.3105v6 · doi: 10.48550/arxiv.0809.3105 · pith_short_12: ZWYJJE6KCZXO · pith_short_16: ZWYJJE6KCZXOZ5EH · pith_short_8: ZWYJJE6K

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/ZWYJJE6KCZXOZ5EH3A7YDRNS64 \
  | 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: cdb09493ca166eecf487d83f81c5b2f707ef8bdaeef121c6cbd6a6913bd2542c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "cf38b2219c018f75f35cef3f936dc2ad8eaf56b55c01af4a2dbcb0c115a13785",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.GM",
    "submitted_at": "2008-09-18T08:56:32Z",
    "title_canon_sha256": "2daffc576496f570008d51246265d49dd61e8eec266d3c3045cfa4669ac2e2ee"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0809.3105",
    "kind": "arxiv",
    "version": 6
  }
}