Pith Number

pith:STTE4B76

pith:2012:STTE4B765Y5RQL2OT7YJJE5AUM

not attested not anchored not stored refs pending

Approximation of a Reifenberg-flat set by a smooth surface

Guy David (LM-Orsay)

arxiv:1211.3222 v2 · 2012-11-14 · math.CA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{STTE4B765Y5RQL2OT7YJJE5AUM}

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	2026-05-18T03:39:04.712799Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

94e64e07feee3b182f4e9ff09493a0a325273f4082ab15b0de8e81662c0f704a

Aliases

arxiv: 1211.3222 · arxiv_version: 1211.3222v2 · doi: 10.48550/arxiv.1211.3222 · pith_short_12: STTE4B765Y5R · pith_short_16: STTE4B765Y5RQL2O · pith_short_8: STTE4B76

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/STTE4B765Y5RQL2OT7YJJE5AUM \
  | 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: 94e64e07feee3b182f4e9ff09493a0a325273f4082ab15b0de8e81662c0f704a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "bc61b2ddf2006b05685fe19289e317c9331f5f8f0acb91d2da2e037084e07fcb",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CA",
    "submitted_at": "2012-11-14T07:30:31Z",
    "title_canon_sha256": "ef81e7f62c7916136aa2e21b381ff7ee6faa21eefcbd4a5efbba7297db8d0124"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1211.3222",
    "kind": "arxiv",
    "version": 2
  }
}