Pith Number

pith:AU33Q7FM

pith:2012:AU33Q7FMYP3PPWZ2ZGTHZF7MI5

not attested not anchored not stored refs pending

On the Regularity of the Free Boundary for Quasilinear Obstacle Problems

A. Lyaghfouri, J. F. Rodrigues, R. Teymurazyan, S. Challal

arxiv:1206.6641 v2 · 2012-06-28 · 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{AU33Q7FMYP3PPWZ2ZGTHZF7MI5}

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	2026-05-18T03:01:11.192121Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0537b87cacc3f6f7db3ac9a67c97ec47638e0d608d7e6a01b13c98c3ccae63bc

Aliases

arxiv: 1206.6641 · arxiv_version: 1206.6641v2 · doi: 10.48550/arxiv.1206.6641 · pith_short_12: AU33Q7FMYP3P · pith_short_16: AU33Q7FMYP3PPWZ2 · pith_short_8: AU33Q7FM

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/AU33Q7FMYP3PPWZ2ZGTHZF7MI5 \
  | 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: 0537b87cacc3f6f7db3ac9a67c97ec47638e0d608d7e6a01b13c98c3ccae63bc

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "539bf4f8f22986650012808350dae609b1fb4bf3bb4145222ca2238e228838ef",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AP",
    "submitted_at": "2012-06-28T11:49:55Z",
    "title_canon_sha256": "feaa43fe05eb2f747e2140d50372a8acd39a5514dae13045a93d93528db27cd1"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1206.6641",
    "kind": "arxiv",
    "version": 2
  }
}