Pith Number

pith:NEJM5LCA

pith:2009:NEJM5LCAC3XTDKZDZKGGYENPE5

not attested not anchored not stored refs pending

Univalent Baker domains and boundary of deformations

Guillermo Sienra, Patricia Dominguez

arxiv:0904.2811 v2 · 2009-04-18 · math.DS · 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{NEJM5LCAC3XTDKZDZKGGYENPE5}

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	2026-05-18T04:34:46.326589Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6912ceac4016ef31ab23ca8c6c11af2756bf6064018b1d87af9e376658b57d83

Aliases

arxiv: 0904.2811 · arxiv_version: 0904.2811v2 · doi: 10.48550/arxiv.0904.2811 · pith_short_12: NEJM5LCAC3XT · pith_short_16: NEJM5LCAC3XTDKZD · pith_short_8: NEJM5LCA

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/NEJM5LCAC3XTDKZDZKGGYENPE5 \
  | 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: 6912ceac4016ef31ab23ca8c6c11af2756bf6064018b1d87af9e376658b57d83

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6c38ceb6058692ca0c33acd95b41f0705117f28256248197d33ceb429b411db9",
    "cross_cats_sorted": [
      "math.CV"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.DS",
    "submitted_at": "2009-04-18T02:57:19Z",
    "title_canon_sha256": "1a0ffad8c87f586f0a79ca1b0384718f4f07ce466d8cc7f1f17d974fbb48abd2"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0904.2811",
    "kind": "arxiv",
    "version": 2
  }
}