Pith Number

pith:SWK7Q75P

pith:2015:SWK7Q75PPHR6YHONKUZKJVNIRL

not attested not anchored not stored refs pending

On finding an obstacle with the Leontovich boundary condition via the time domain enclosure method

Masaru Ikehata

arxiv:1510.08209 v2 · 2015-10-28 · math.AP · math-ph · math.MP

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{SWK7Q75PPHR6YHONKUZKJVNIRL}

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	2026-05-18T00:12:41.017724Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

9595f87faf79e3ec1dcd5532a4d5a88af6259e69c3481869f77f84ef7bf4e390

Aliases

arxiv: 1510.08209 · arxiv_version: 1510.08209v2 · doi: 10.48550/arxiv.1510.08209 · pith_short_12: SWK7Q75PPHR6 · pith_short_16: SWK7Q75PPHR6YHON · pith_short_8: SWK7Q75P

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/SWK7Q75PPHR6YHONKUZKJVNIRL \
  | 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: 9595f87faf79e3ec1dcd5532a4d5a88af6259e69c3481869f77f84ef7bf4e390

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3de370cbf6ee96cfedbd7d2b0dd3dc40511f1faed70b90b5d3574389b21e4b4f",
    "cross_cats_sorted": [
      "math-ph",
      "math.MP"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AP",
    "submitted_at": "2015-10-28T07:00:17Z",
    "title_canon_sha256": "a65d0996023fff57a8ed59172ea96f52640979e35c31444fa7b85813c30576c3"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1510.08209",
    "kind": "arxiv",
    "version": 2
  }
}