Pith Number

pith:WQWW6O5Z

pith:2012:WQWW6O5ZVZYVWHQKXVNH2HFCHJ

not attested not anchored not stored refs pending

Well-posedness and gradient blow-up estimate near the boundary for a Hamilton-Jacobi equation with degenerate diffusion

Amal Attouchi

arxiv:1201.3566 v2 · 2012-01-17 · 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{WQWW6O5ZVZYVWHQKXVNH2HFCHJ}

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	2026-05-18T04:02:54.034534Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b42d6f3bb9ae715b1e0abd5a7d1ca23a7dc0222636fa6b3022c4ee87785bca2b

Aliases

arxiv: 1201.3566 · arxiv_version: 1201.3566v2 · doi: 10.48550/arxiv.1201.3566 · pith_short_12: WQWW6O5ZVZYV · pith_short_16: WQWW6O5ZVZYVWHQK · pith_short_8: WQWW6O5Z

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/WQWW6O5ZVZYVWHQKXVNH2HFCHJ \
  | 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: b42d6f3bb9ae715b1e0abd5a7d1ca23a7dc0222636fa6b3022c4ee87785bca2b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ffcda2e4c396b5db2882c0dec53ed0291385ff23b392588ca24bb145f3f2f6a0",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AP",
    "submitted_at": "2012-01-17T17:31:02Z",
    "title_canon_sha256": "dff06764f3cc62abe83a9ba8cec1ceb4f7d80d207250ffe05f9e1c739c0c52d8"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1201.3566",
    "kind": "arxiv",
    "version": 2
  }
}