Pith Number

pith:PD6ZCDOO

pith:2018:PD6ZCDOOMSASHZQVG5QHZCLQ2L

not attested not anchored not stored refs pending

Almgren's center manifold in a simple setting

Camillo De Lellis

arxiv:1807.06239 v2 · 2018-07-17 · 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{PD6ZCDOOMSASHZQVG5QHZCLQ2L}

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	2026-05-18T00:10:27.521267Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

78fd910dce648123e61537607c8970d2d5f0a1edd2b99a7074ece0a51e51e050

Aliases

arxiv: 1807.06239 · arxiv_version: 1807.06239v2 · doi: 10.48550/arxiv.1807.06239 · pith_short_12: PD6ZCDOOMSAS · pith_short_16: PD6ZCDOOMSASHZQV · pith_short_8: PD6ZCDOO

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/PD6ZCDOOMSASHZQVG5QHZCLQ2L \
  | 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: 78fd910dce648123e61537607c8970d2d5f0a1edd2b99a7074ece0a51e51e050

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a373a0cb6b1587538f255513eae23e9590979d2148f0ea8428335e459a262aac",
    "cross_cats_sorted": [
      "math.DG"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AP",
    "submitted_at": "2018-07-17T06:22:00Z",
    "title_canon_sha256": "2c852ddbfe0727ab94effdc41c7507d470a95665ea592e687a85d51dae583fb1"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1807.06239",
    "kind": "arxiv",
    "version": 2
  }
}