Pith Number

pith:TJ65DH3T

pith:2025:TJ65DH3TW2V3STF5CVJ746V5SB

not attested not anchored not stored refs pending

English translation of the paper "Electromagnetic field inside a plane-parallel layer in the resonant absorption regime" (1962) by A. P. Khapalyuk: Pioneering study on coherent perfect absorption

Denis V. Novitsky

arxiv:2508.19687 v1 · 2025-08-27 · physics.hist-ph · physics.optics

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{TJ65DH3TW2V3STF5CVJ746V5SB}

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	2026-07-05T12:00:16.415273Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

9a7dd19f73b6abb94cbd1553fe7abd9058dad5de4c4f3aca648fbf1c0b1ac143

Aliases

arxiv: 2508.19687 · arxiv_version: 2508.19687v1 · doi: 10.48550/arxiv.2508.19687 · pith_short_12: TJ65DH3TW2V3 · pith_short_16: TJ65DH3TW2V3STF5 · pith_short_8: TJ65DH3T

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/TJ65DH3TW2V3STF5CVJ746V5SB \
  | 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: 9a7dd19f73b6abb94cbd1553fe7abd9058dad5de4c4f3aca648fbf1c0b1ac143

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3713053678d6a935473d60202ae74e7d3a64cc5ccb9f5e1a95d0caedc4542c26",
    "cross_cats_sorted": [
      "physics.optics"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.hist-ph",
    "submitted_at": "2025-08-27T08:50:41Z",
    "title_canon_sha256": "dbd08550837ceee683c1e50f7494060ca9eb7623cf75e277051378fd5f4b824a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2508.19687",
    "kind": "arxiv",
    "version": 1
  }
}