Pith Number

pith:WESKQ2ST

pith:2018:WESKQ2STNS5YIB4LSCUSJ65MZ7

not attested not anchored not stored refs pending

Certified reduced basis methods for fractional Laplace equations via extension

Akil Narayan, Harbir Antil, Yanlai Chen

arxiv:1808.00584 v1 · 2018-08-01 · 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{WESKQ2STNS5YIB4LSCUSJ65MZ7}

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	2026-05-18T00:09:04.826101Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b124a86a536cbb84078b90a924fbaccff135c23598eb582befc25ae50c6f70c6

Aliases

arxiv: 1808.00584 · arxiv_version: 1808.00584v1 · doi: 10.48550/arxiv.1808.00584 · pith_short_12: WESKQ2STNS5Y · pith_short_16: WESKQ2STNS5YIB4L · pith_short_8: WESKQ2ST

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/WESKQ2STNS5YIB4LSCUSJ65MZ7 \
  | 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: b124a86a536cbb84078b90a924fbaccff135c23598eb582befc25ae50c6f70c6

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "69218f1aa845fca2f2f12efc4335b66d105c62f1cc362c9f14fc06ebc378cc00",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2018-08-01T22:10:03Z",
    "title_canon_sha256": "8b69a86bd6373e866607de25ca02bf94d844f85526c715b620a454bc6ab9d449"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1808.00584",
    "kind": "arxiv",
    "version": 1
  }
}