Pith Number

pith:NHBEP5SP

pith:2014:NHBEP5SP4A6Z7OZG55FLT5AJZI

not attested not anchored not stored refs pending

Fourier theory of linear gain media

Hans Olaf H{\aa}genvik, Johannes Skaar, Markus E. Malema

arxiv:1407.0187 v2 · 2014-07-01 · 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{NHBEP5SP4A6Z7OZG55FLT5AJZI}

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	2026-05-18T02:18:33.058564Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

69c247f64fe03d9fbb26ef4ab9f409ca3e93f205bd97f36bf58e4efaf7357a2e

Aliases

arxiv: 1407.0187 · arxiv_version: 1407.0187v2 · doi: 10.48550/arxiv.1407.0187 · pith_short_12: NHBEP5SP4A6Z · pith_short_16: NHBEP5SP4A6Z7OZG · pith_short_8: NHBEP5SP

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/NHBEP5SP4A6Z7OZG55FLT5AJZI \
  | 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: 69c247f64fe03d9fbb26ef4ab9f409ca3e93f205bd97f36bf58e4efaf7357a2e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5377af53eb592719d2e4e100f9796f29a40ccc1879937cdcba0e83d9a46771c6",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.optics",
    "submitted_at": "2014-07-01T11:04:05Z",
    "title_canon_sha256": "b95a22cbac8172bae8211b39fef96ea3d8b777fc1b8ffea2a108f4e8edc99e66"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1407.0187",
    "kind": "arxiv",
    "version": 2
  }
}