Pith Number

pith:L7QKF27B

pith:2012:L7QKF27BYUQSVSHMN4OQXWODIC

not attested not anchored not stored refs pending

An accurate boundary value problem solver applied to scattering from cylinders with corners

Anders Karlsson, Johan Helsing

arxiv:1211.2467 v1 · 2012-11-11 · physics.comp-ph · 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{L7QKF27BYUQSVSHMN4OQXWODIC}

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	2026-05-18T01:53:16.968452Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

5fe0a2ebe1c5212ac8ec6f1d0bd9c340b857c312e6f29da5d37716a5dfa24b18

Aliases

arxiv: 1211.2467 · arxiv_version: 1211.2467v1 · doi: 10.48550/arxiv.1211.2467 · pith_short_12: L7QKF27BYUQS · pith_short_16: L7QKF27BYUQSVSHM · pith_short_8: L7QKF27B

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/L7QKF27BYUQSVSHMN4OQXWODIC \
  | 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: 5fe0a2ebe1c5212ac8ec6f1d0bd9c340b857c312e6f29da5d37716a5dfa24b18

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "fe61ad233a0cec897098033d15becdebb3ceef930204e1f2608822d7abb4e019",
    "cross_cats_sorted": [
      "math.NA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.comp-ph",
    "submitted_at": "2012-11-11T21:34:51Z",
    "title_canon_sha256": "49660bf5bf39dab54ef2223576db1a6d2ceab235a33d01c6174c3eff73f0bc6d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1211.2467",
    "kind": "arxiv",
    "version": 1
  }
}