Pith Number

pith:FLGDQJQ2

pith:2020:FLGDQJQ2CZTABKCIWUDMTIUHUO

not attested not anchored not stored refs pending

A New Family of Boundary-Domain Integral Equations for the Dirichlet Problem of the Diffusion Equation in Inhomogeneous Media with $H^{-1}(\Omega)$ Source Term on Lipschitz Domains

C.Fresneda-Portillo, Z.W. Woldemicheal

arxiv:2002.09694 v1 · 2020-02-22 · math.AP · math.FA

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{FLGDQJQ2CZTABKCIWUDMTIUHUO}

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	2026-07-05T01:53:08.007215Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2acc38261a166600a848b506c9a287a3a520e291aa4e308c37cf53ab42d5ed4a

Aliases

arxiv: 2002.09694 · arxiv_version: 2002.09694v1 · doi: 10.48550/arxiv.2002.09694 · pith_short_12: FLGDQJQ2CZTA · pith_short_16: FLGDQJQ2CZTABKCI · pith_short_8: FLGDQJQ2

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/FLGDQJQ2CZTABKCIWUDMTIUHUO \
  | 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: 2acc38261a166600a848b506c9a287a3a520e291aa4e308c37cf53ab42d5ed4a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "18e18509d6e638082c4ce8e4bd9819be1bd7d39ee8613681f923c6302377a492",
    "cross_cats_sorted": [
      "math.FA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AP",
    "submitted_at": "2020-02-22T12:55:32Z",
    "title_canon_sha256": "42e6e5ce1cdbbb193f5b8307a91a3524856789d7901ac67e348e614a4f7b8bdb"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2002.09694",
    "kind": "arxiv",
    "version": 1
  }
}