Pith Number

pith:OZBHSUAL

pith:2017:OZBHSUALFEMBPAP5OW3UYUPZMD

not attested not anchored not stored refs pending

On the regularity of the free boundary in the $p$-Laplacian obstacle problem

Alessio Figalli, Brian Krummel, Xavier Ros-Oton

arxiv:1701.05262 v1 · 2017-01-19 · 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{OZBHSUALFEMBPAP5OW3UYUPZMD}

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	2026-05-18T00:52:30.404864Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

764279500b29181781fd75b74c51f960d24dd3e4e5088d4d670dbe5d81e7f168

Aliases

arxiv: 1701.05262 · arxiv_version: 1701.05262v1 · doi: 10.48550/arxiv.1701.05262 · pith_short_12: OZBHSUALFEMB · pith_short_16: OZBHSUALFEMBPAP5 · pith_short_8: OZBHSUAL

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/OZBHSUALFEMBPAP5OW3UYUPZMD \
  | 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: 764279500b29181781fd75b74c51f960d24dd3e4e5088d4d670dbe5d81e7f168

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "459dba33bfa477dc5e78f3a723b7ea0d0c8d850304ba409c42ffad3fa3190def",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AP",
    "submitted_at": "2017-01-19T00:26:41Z",
    "title_canon_sha256": "eaaf7308f584ed7923f2aa6196b21a3d79b208e96fdc25912d579895e0159d8f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1701.05262",
    "kind": "arxiv",
    "version": 1
  }
}