Pith Number

pith:A4VXZ2ZC

pith:2009:A4VXZ2ZCBKNW2VTPPFIHX35TYR

not attested not anchored not stored refs pending

A fully nonlinear version of the Yamabe problem on locally conformally flat manifolds with umbilic boundary

Luc Nguyen, Yanyan Li

arxiv:0911.3366 v1 · 2009-11-17 · math.AP · math.DG

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{A4VXZ2ZCBKNW2VTPPFIHX35TYR}

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	2026-07-04T17:16:05.160789Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

072b7ceb220a9b6d566f79507befb3c45e55c28876999a90b5759a71a358af1c

Aliases

arxiv: 0911.3366 · arxiv_version: 0911.3366v1 · doi: 10.48550/arxiv.0911.3366 · pith_short_12: A4VXZ2ZCBKNW · pith_short_16: A4VXZ2ZCBKNW2VTP · pith_short_8: A4VXZ2ZC

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/A4VXZ2ZCBKNW2VTPPFIHX35TYR \
  | 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: 072b7ceb220a9b6d566f79507befb3c45e55c28876999a90b5759a71a358af1c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ddcd3d416bc4fe5f7a3d382c0d5598fb5fc8668a0ef156f5a24ee2b88b6928cc",
    "cross_cats_sorted": [
      "math.DG"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AP",
    "submitted_at": "2009-11-17T18:29:57Z",
    "title_canon_sha256": "73be474124ee061f894e353e2be88338d2519d9ebff28772130aa79c91d5fd2f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0911.3366",
    "kind": "arxiv",
    "version": 1
  }
}