Pith Number

pith:N7NNS7HK

pith:2018:N7NNS7HKRBBU6OQLDSDYBNAEH5

not attested not anchored not stored refs pending

User's guide to the fractional Laplacian and the method of semigroups

P. R. Stinga

arxiv:1808.05159 v1 · 2018-08-15 · math.AP · math.CA · math.FA

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{N7NNS7HKRBBU6OQLDSDYBNAEH5}

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	2026-05-18T00:08:01.447282Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6fdad97cea88434f3a0b1c8780b4043f770344f13046f21a8d147325175c75c6

Aliases

arxiv: 1808.05159 · arxiv_version: 1808.05159v1 · doi: 10.48550/arxiv.1808.05159 · pith_short_12: N7NNS7HKRBBU · pith_short_16: N7NNS7HKRBBU6OQL · pith_short_8: N7NNS7HK

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/N7NNS7HKRBBU6OQLDSDYBNAEH5 \
  | 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: 6fdad97cea88434f3a0b1c8780b4043f770344f13046f21a8d147325175c75c6

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b5a9e000d3b9e883831fa103b52e413b92a91691ad1765e8d654fea72b7f6de4",
    "cross_cats_sorted": [
      "math.CA",
      "math.FA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AP",
    "submitted_at": "2018-08-15T15:53:28Z",
    "title_canon_sha256": "2c10125812b90d71d083f3ec2afa4b6c29261af0d83e3ede78008dba991fa0eb"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1808.05159",
    "kind": "arxiv",
    "version": 1
  }
}