Pith Number

pith:IWQAP752

pith:2014:IWQAP752I4HAETXF7GCMFVFSH5

not attested not anchored not stored refs pending

An integrable deformation of an ellipse of small eccentricity is an ellipse

Artur Avila, Jacopo De Simoi, Vadim Kaloshin

arxiv:1412.2853 v4 · 2014-12-09 · 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{IWQAP752I4HAETXF7GCMFVFSH5}

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	2026-05-18T01:21:08.678856Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

45a007ffba470e024ee5f984c2d4b23f521fab05d898974b8805cd21a981e786

Aliases

arxiv: 1412.2853 · arxiv_version: 1412.2853v4 · doi: 10.48550/arxiv.1412.2853 · pith_short_12: IWQAP752I4HA · pith_short_16: IWQAP752I4HAETXF · pith_short_8: IWQAP752

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/IWQAP752I4HAETXF7GCMFVFSH5 \
  | 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: 45a007ffba470e024ee5f984c2d4b23f521fab05d898974b8805cd21a981e786

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "907398f9a48ffbfdbaf9e97fb0caa2048ef1cfc283c8a14b5941bb058fc61c47",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.DS",
    "submitted_at": "2014-12-09T04:28:49Z",
    "title_canon_sha256": "03a5fef1c3cc2c6e909e90e4ce073cf512117525af19602255ae344a39f783b9"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1412.2853",
    "kind": "arxiv",
    "version": 4
  }
}