Pith Number

pith:XXLHGD7C

pith:2020:XXLHGD7CLRMZITYBOYSFA33R42

not attested not anchored not stored refs pending

An all-at-once preconditioner for evolutionary partial differential equations

M. Ng, X.-L. Lin

arxiv:2002.01108 v2 · 2020-02-04 · math.NA · cs.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{XXLHGD7CLRMZITYBOYSFA33R42}

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	2026-07-05T02:19:53.650595Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

bdd6730fe25c59944f017624506f71e686952172737cfa15e8fbe9147a0c5d0b

Aliases

arxiv: 2002.01108 · arxiv_version: 2002.01108v2 · doi: 10.48550/arxiv.2002.01108 · pith_short_12: XXLHGD7CLRMZ · pith_short_16: XXLHGD7CLRMZITYB · pith_short_8: XXLHGD7C

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/XXLHGD7CLRMZITYBOYSFA33R42 \
  | 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: bdd6730fe25c59944f017624506f71e686952172737cfa15e8fbe9147a0c5d0b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "006a26eb68301bf80e7c04d7d554e26fee9af51ae39ab5a8f8278f5ce6656c87",
    "cross_cats_sorted": [
      "cs.NA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2020-02-04T03:43:33Z",
    "title_canon_sha256": "45601f5e8d759373c3d44900db56e355b29afb3fba8e68293bf24810d92146a9"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2002.01108",
    "kind": "arxiv",
    "version": 2
  }
}