Pith Number

pith:5FNFDX5A

pith:2018:5FNFDX5AOWTRH5UI7FOLPAJPFR

not attested not anchored not stored refs pending

Splitting method for elliptic equations with line sources

Barbara Wohlmuth, Ingeborg G. Gjerde, Jan M. Nordbotten, Kundan Kumar

arxiv:1810.12979 v1 · 2018-10-30 · math.NA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{5FNFDX5AOWTRH5UI7FOLPAJPFR}

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	2026-05-18T00:01:52.551761Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e95a51dfa075a713f688f95cb7812f2c70a160945e37352e1510ffc79ec0bd11

Aliases

arxiv: 1810.12979 · arxiv_version: 1810.12979v1 · doi: 10.48550/arxiv.1810.12979 · pith_short_12: 5FNFDX5AOWTR · pith_short_16: 5FNFDX5AOWTRH5UI · pith_short_8: 5FNFDX5A

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/5FNFDX5AOWTRH5UI7FOLPAJPFR \
  | 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: e95a51dfa075a713f688f95cb7812f2c70a160945e37352e1510ffc79ec0bd11

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "cb56691a4716d5db9284ff33e0671d62dad7a631720d133a8a604655c91e494a",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2018-10-30T19:50:09Z",
    "title_canon_sha256": "096a60bf58c072504fb530251cb5dea67022350cd03f377c0920b07659388e8d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1810.12979",
    "kind": "arxiv",
    "version": 1
  }
}