Pith Number

pith:PU7C6ABX

pith:2015:PU7C6ABXXNZBPPAU6CVGCAMP2R

not attested not anchored not stored refs pending

Fractional discrete Laplacian versus discretized fractional Laplacian

J. L. Torrea, J. L. Varona, L. Roncal, \'O. Ciaurri, P. R. Stinga

arxiv:1507.04986 v1 · 2015-07-17 · math.AP · math.CA · 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{PU7C6ABXXNZBPPAU6CVGCAMP2R}

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	2026-05-18T01:36:42.247220Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7d3e2f0037bb7217bc14f0aa61018fd441e243933a3f3f87301b55e8b5430f7d

Aliases

arxiv: 1507.04986 · arxiv_version: 1507.04986v1 · doi: 10.48550/arxiv.1507.04986 · pith_short_12: PU7C6ABXXNZB · pith_short_16: PU7C6ABXXNZBPPAU · pith_short_8: PU7C6ABX

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/PU7C6ABXXNZBPPAU6CVGCAMP2R \
  | 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: 7d3e2f0037bb7217bc14f0aa61018fd441e243933a3f3f87301b55e8b5430f7d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f33c2f52b21b38f3dfe3e4058eac288ddfc909ca14038907d03c07839d6ebe97",
    "cross_cats_sorted": [
      "math.CA",
      "math.NA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AP",
    "submitted_at": "2015-07-17T14:34:04Z",
    "title_canon_sha256": "afd2441b1ea645eb7f82124ba2bd9602baf283daa9db0b77bd3ca93ef3be5d31"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1507.04986",
    "kind": "arxiv",
    "version": 1
  }
}