Pith Number

pith:P5QDXAWJ

pith:2019:P5QDXAWJVXWSIDKTD3XDUECWO6

not attested not anchored not stored refs pending

Optimal order finite difference approximation of generalized solutions to the biharmonic equation in a cube

Endre S\"uli, Florian Schweiger, Stefan M\"uller

arxiv:1904.02084 v1 · 2019-04-03 · 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{P5QDXAWJVXWSIDKTD3XDUECWO6}

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	2026-05-17T23:49:28.502805Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7f603b82c9aded240d531eee3a1056778732b75d8dc5b9658cfdf5c1d65faf98

Aliases

arxiv: 1904.02084 · arxiv_version: 1904.02084v1 · doi: 10.48550/arxiv.1904.02084 · pith_short_12: P5QDXAWJVXWS · pith_short_16: P5QDXAWJVXWSIDKT · pith_short_8: P5QDXAWJ

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/P5QDXAWJVXWSIDKTD3XDUECWO6 \
  | 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: 7f603b82c9aded240d531eee3a1056778732b75d8dc5b9658cfdf5c1d65faf98

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "71d861ba39f4fe5adde381543c224a271b87907730d451f83dea268cb68c41ad",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2019-04-03T16:25:24Z",
    "title_canon_sha256": "6904073c1d0edff3f6fedc6725b3e6a9cdf3ee71dc4403618826379cc3aa075e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1904.02084",
    "kind": "arxiv",
    "version": 1
  }
}