Pith Number

pith:XSOHMSNZ

pith:2011:XSOHMSNZHLGF2E5VC5HLFRLAFC

not attested not anchored not stored refs pending

Surfaces moving by powers of Gauss curvature

Ben Andrews, Xuzhong Chen

arxiv:1111.4616 v1 · 2011-11-20 · 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{XSOHMSNZHLGF2E5VC5HLFRLAFC}

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	2026-05-18T04:08:02.980299Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

bc9c7649b93acc5d13b5174eb2c56028b06f5c719e8eed4cededfdd4de504a1e

Aliases

arxiv: 1111.4616 · arxiv_version: 1111.4616v1 · doi: 10.48550/arxiv.1111.4616 · pith_short_12: XSOHMSNZHLGF · pith_short_16: XSOHMSNZHLGF2E5V · pith_short_8: XSOHMSNZ

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/XSOHMSNZHLGF2E5VC5HLFRLAFC \
  | 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: bc9c7649b93acc5d13b5174eb2c56028b06f5c719e8eed4cededfdd4de504a1e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "979a7e180ddb67a1173bd1788c4b28410956b9ed415bc6e7f0be0959286f7d2e",
    "cross_cats_sorted": [
      "math.AP"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.DG",
    "submitted_at": "2011-11-20T07:51:53Z",
    "title_canon_sha256": "42c160f772ebcbe3bf6f9568c52bc60117f0cabfe0319867060eb87bcbdd1fd9"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1111.4616",
    "kind": "arxiv",
    "version": 1
  }
}