Pith Number

pith:XCKXGD6M

pith:2018:XCKXGD6MN627YRZA4JHBFX65HL

not attested not anchored not stored refs pending

On global solutions to semilinear elliptic equations related to the one-phase free boundary problem

Xavier Fern\'andez-Real, Xavier Ros-Oton

arxiv:1811.02980 v1 · 2018-11-07 · 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{XCKXGD6MN627YRZA4JHBFX65HL}

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	2026-05-18T00:01:20.213310Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b895730fcc6fb5fc4720e24e12dfdd3ade156af85cf452a3784bdb27e03caae0

Aliases

arxiv: 1811.02980 · arxiv_version: 1811.02980v1 · doi: 10.48550/arxiv.1811.02980 · pith_short_12: XCKXGD6MN627 · pith_short_16: XCKXGD6MN627YRZA · pith_short_8: XCKXGD6M

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/XCKXGD6MN627YRZA4JHBFX65HL \
  | 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: b895730fcc6fb5fc4720e24e12dfdd3ade156af85cf452a3784bdb27e03caae0

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8891971c5c205b23b79ff0b2ebb7f7d22914cd6118c0455f34479cf6fdc4986c",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AP",
    "submitted_at": "2018-11-07T16:46:59Z",
    "title_canon_sha256": "57637b6bb6e5ea69940a3383c7c1e2720ecdfc7a8012d4dcf345a4f4d70142b3"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1811.02980",
    "kind": "arxiv",
    "version": 1
  }
}