Pith Number

pith:PPRE7VHH

pith:2017:PPRE7VHHTFPSECCPODXFTXXU5N

not attested not anchored not stored refs pending

On a Helmholtz transmission problem in planar domains with corners

Anders Karlsson, Johan Helsing

arxiv:1711.09796 v3 · 2017-11-27 · physics.comp-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{PPRE7VHHTFPSECCPODXFTXXU5N}

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	2026-05-18T00:09:30.185778Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7be24fd4e7995f22084f70ee59def4eb44a05a067e0d3c5a7e64be1255196d15

Aliases

arxiv: 1711.09796 · arxiv_version: 1711.09796v3 · doi: 10.48550/arxiv.1711.09796 · pith_short_12: PPRE7VHHTFPS · pith_short_16: PPRE7VHHTFPSECCP · pith_short_8: PPRE7VHH

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/PPRE7VHHTFPSECCPODXFTXXU5N \
  | 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: 7be24fd4e7995f22084f70ee59def4eb44a05a067e0d3c5a7e64be1255196d15

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ef7c2174091e1b0323ce1858df3d4940f8ddfa29f921b9f7a21ad85c8d28f3ab",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.comp-ph",
    "submitted_at": "2017-11-27T16:07:38Z",
    "title_canon_sha256": "6574eadc10a915d21ccf9343db95e93f7d0efd89936f73902e9468d444246208"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1711.09796",
    "kind": "arxiv",
    "version": 3
  }
}