Pith Number

pith:IYWELK3F

pith:2013:IYWELK3F7DHFV2OLBSDCXIO76S

not attested not anchored not stored refs pending

On the CR automorphism group of a certain hypersurface of infinite type in $\mathbb C^2$

Ninh Van Thu

arxiv:1311.3050 v3 · 2013-11-13 · math.CV

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{IYWELK3F7DHFV2OLBSDCXIO76S}

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	2026-05-18T02:53:53.484608Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

462c45ab65f8ce5ae9cb0c862ba1dff484de6f4e6041741ec4f27036ef4810b7

Aliases

arxiv: 1311.3050 · arxiv_version: 1311.3050v3 · doi: 10.48550/arxiv.1311.3050 · pith_short_12: IYWELK3F7DHF · pith_short_16: IYWELK3F7DHFV2OL · pith_short_8: IYWELK3F

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/IYWELK3F7DHFV2OLBSDCXIO76S \
  | 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: 462c45ab65f8ce5ae9cb0c862ba1dff484de6f4e6041741ec4f27036ef4810b7

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c3c2467943dff45e6e9c43d892098f42e801fc016bb87225fdeeda2065c4e162",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CV",
    "submitted_at": "2013-11-13T08:45:03Z",
    "title_canon_sha256": "7d24d3a9b1207f273cb6ab73db872f819a82f3833e728bdd893d90c3c9add805"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1311.3050",
    "kind": "arxiv",
    "version": 3
  }
}