Pith Number

pith:SQ5DB62Y

pith:2012:SQ5DB62YZ42EB4HMUPI5XA5WVG

not attested not anchored not stored refs pending

A general class of free boundary problems for fully nonlinear elliptic equations

A. Figalli, H. Shahgholian

arxiv:1212.5809 v2 · 2012-12-23 · 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{SQ5DB62YZ42EB4HMUPI5XA5WVG}

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	2026-05-18T03:29:29.407985Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

943a30fb58cf3440f0eca3d1db83b6a9b5e66437f6e14fd931543f4d14414927

Aliases

arxiv: 1212.5809 · arxiv_version: 1212.5809v2 · doi: 10.48550/arxiv.1212.5809 · pith_short_12: SQ5DB62YZ42E · pith_short_16: SQ5DB62YZ42EB4HM · pith_short_8: SQ5DB62Y

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/SQ5DB62YZ42EB4HMUPI5XA5WVG \
  | 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: 943a30fb58cf3440f0eca3d1db83b6a9b5e66437f6e14fd931543f4d14414927

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3d51f841b21c4c56a6f87835c19ce12dbecab486f4439a89341ccbb81d1e0f56",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AP",
    "submitted_at": "2012-12-23T16:08:33Z",
    "title_canon_sha256": "c36bf48eba0d76422ef39a5a517a42ee03afb27854a3a6c1db90c735bd586eba"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1212.5809",
    "kind": "arxiv",
    "version": 2
  }
}