Pith Number

pith:X4OH7NJF

pith:2019:X4OH7NJFKTC2JGFUXKP6ML5H24

not attested not anchored not stored refs pending

A structure-preserving discontinuous Galerkin scheme for the Fischer-KPP equation

Ansgar J\"ungel, Francesca Bonizzoni, Ilaria Perugia, Marcel Braukhoff

arxiv:1903.04212 v1 · 2019-03-11 · 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{X4OH7NJFKTC2JGFUXKP6ML5H24}

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	2026-05-17T23:51:36.220715Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

bf1c7fb52554c5a498b4ba9fe62fa7d7078d902bf4bccb942d69c7823e41adfa

Aliases

arxiv: 1903.04212 · arxiv_version: 1903.04212v1 · doi: 10.48550/arxiv.1903.04212 · pith_short_12: X4OH7NJFKTC2 · pith_short_16: X4OH7NJFKTC2JGFU · pith_short_8: X4OH7NJF

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/X4OH7NJFKTC2JGFUXKP6ML5H24 \
  | 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: bf1c7fb52554c5a498b4ba9fe62fa7d7078d902bf4bccb942d69c7823e41adfa

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6b63acf7801218eaf9f91f20b4dd1947a7affdf0beee64e31e8d50c2cc6a6783",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2019-03-11T10:58:33Z",
    "title_canon_sha256": "8868e072123689cb7f96258ba362da12562c7e428cdac81e96c034176514eb15"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1903.04212",
    "kind": "arxiv",
    "version": 1
  }
}