Pith Number

pith:KOX35NAW

pith:2015:KOX35NAWGXEVKE46LXM65XRZWN

not attested not anchored not stored refs pending

Vacuum Birefringence as a Vacuum Emission Process

Felix Karbstein

arxiv:1510.03178 v1 · 2015-10-12 · hep-ph · quant-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{KOX35NAWGXEVKE46LXM65XRZWN}

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	2026-05-18T01:30:32.566738Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

53afbeb41635c955139e5dd9eede39b363d0889192cf10d69cf6899d7eba9048

Aliases

arxiv: 1510.03178 · arxiv_version: 1510.03178v1 · doi: 10.48550/arxiv.1510.03178 · pith_short_12: KOX35NAWGXEV · pith_short_16: KOX35NAWGXEVKE46 · pith_short_8: KOX35NAW

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/KOX35NAWGXEVKE46LXM65XRZWN \
  | 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: 53afbeb41635c955139e5dd9eede39b363d0889192cf10d69cf6899d7eba9048

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "378a0de63a8c15052d2d9fe809bef120335f79f7e7a0040a8c81a12b84329fd4",
    "cross_cats_sorted": [
      "quant-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "hep-ph",
    "submitted_at": "2015-10-12T08:22:42Z",
    "title_canon_sha256": "65c1a6f01610acb9ef5daeddda55c558dc87b826a0470ef094f0b8abe9953f6e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1510.03178",
    "kind": "arxiv",
    "version": 1
  }
}