Pith Number

pith:KHRKNWQ4

pith:2016:KHRKNWQ4HWI4WT3FAW7ZNKAVQ3

not attested not anchored not stored refs pending

A Singularly Perturbed Boundary Value Problems with Fractional Powers of Elliptic Operators

Petr N. Vabishchevich

arxiv:1604.04427 v1 · 2016-04-15 · cs.NA · 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{KHRKNWQ4HWI4WT3FAW7ZNKAVQ3}

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	2026-05-18T01:17:04.098890Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

51e2a6da1c3d91cb4f6505bf96a81586d220442a1d6a18a813b52b270c333281

Aliases

arxiv: 1604.04427 · arxiv_version: 1604.04427v1 · doi: 10.48550/arxiv.1604.04427 · pith_short_12: KHRKNWQ4HWI4 · pith_short_16: KHRKNWQ4HWI4WT3F · pith_short_8: KHRKNWQ4

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/KHRKNWQ4HWI4WT3FAW7ZNKAVQ3 \
  | 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: 51e2a6da1c3d91cb4f6505bf96a81586d220442a1d6a18a813b52b270c333281

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "84ddcaa09e05812c4ddab577698b637fb505ad54ba065d6691f3863a39c389e5",
    "cross_cats_sorted": [
      "math.NA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.NA",
    "submitted_at": "2016-04-15T10:55:47Z",
    "title_canon_sha256": "9a6ff77cc0493e53a95bd822890f2c9708ff4f295a1d3c2f30ece7b0bed275eb"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1604.04427",
    "kind": "arxiv",
    "version": 1
  }
}