Pith Number

pith:2FZ3LQRT

pith:2011:2FZ3LQRTKQEXKGKLPDED3HZNWD

not attested not anchored not stored refs pending

Hypersurfaces with nonnegative scalar curvature

Damin Wu, Lan-Hsuan Huang

arxiv:1102.5749 v3 · 2011-02-28 · math.DG · math.AP

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{2FZ3LQRTKQEXKGKLPDED3HZNWD}

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	2026-05-18T03:26:41.433165Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d173b5c233540975194b78c83d9f2db0df122cd67f8e4a9d0c15d3b15ce4cdc1

Aliases

arxiv: 1102.5749 · arxiv_version: 1102.5749v3 · doi: 10.48550/arxiv.1102.5749 · pith_short_12: 2FZ3LQRTKQEX · pith_short_16: 2FZ3LQRTKQEXKGKL · pith_short_8: 2FZ3LQRT

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/2FZ3LQRTKQEXKGKLPDED3HZNWD \
  | 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: d173b5c233540975194b78c83d9f2db0df122cd67f8e4a9d0c15d3b15ce4cdc1

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c1356d9db59773cc7e52b302ab98fb331902d829880e14fe203d5ec2440ee9bc",
    "cross_cats_sorted": [
      "math.AP"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.DG",
    "submitted_at": "2011-02-28T19:30:59Z",
    "title_canon_sha256": "359b0343cb3a5b6d08e2368bf38ff8e0d98b89927cbcc156d5a96bc56d70918a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1102.5749",
    "kind": "arxiv",
    "version": 3
  }
}