Pith Number

pith:QXGK74FU

pith:2018:QXGK74FU3S55UAQCXSKO57JVZ3

not attested not anchored not stored refs pending

Post-processed Galerkin approximation of improved order for wave equations

Florin A. Radu, Friedhelm Schieweck, Markus Bause, Uwe K\"ocher

arxiv:1803.03005 v1 · 2018-03-08 · 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{QXGK74FU3S55UAQCXSKO57JVZ3}

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	2026-05-18T00:21:44.718108Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

85ccaff0b4dcbbda0202bc94eefd35cedc29bd8816b3a8623c558f3e2a05f84b

Aliases

arxiv: 1803.03005 · arxiv_version: 1803.03005v1 · doi: 10.48550/arxiv.1803.03005 · pith_short_12: QXGK74FU3S55 · pith_short_16: QXGK74FU3S55UAQC · pith_short_8: QXGK74FU

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/QXGK74FU3S55UAQCXSKO57JVZ3 \
  | 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: 85ccaff0b4dcbbda0202bc94eefd35cedc29bd8816b3a8623c558f3e2a05f84b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a46d8238651f5fb0f66a1e685a52e9010f445cdbc1a2658c00288f5b235986e2",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by-nc-sa/4.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2018-03-08T08:58:48Z",
    "title_canon_sha256": "80a3d128c1bbdd33f175175b0d63bf163b8e2676069bd177c4a88580621986e3"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1803.03005",
    "kind": "arxiv",
    "version": 1
  }
}