Pith Number

pith:2PF4U4AD

pith:2016:2PF4U4ADDAR3EBVR5NUVUUME3E

not attested not anchored not stored refs pending

Vacuum birefringence in high-energy laser-electron collisions

B. King, N. Elkina

arxiv:1603.06946 v1 · 2016-03-22 · hep-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{2PF4U4ADDAR3EBVR5NUVUUME3E}

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	2026-05-18T00:55:46.719359Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d3cbca70031823b206b1eb695a5184d91d7fe2f46647d821dd54e39482f04fa5

Aliases

arxiv: 1603.06946 · arxiv_version: 1603.06946v1 · doi: 10.48550/arxiv.1603.06946 · pith_short_12: 2PF4U4ADDAR3 · pith_short_16: 2PF4U4ADDAR3EBVR · pith_short_8: 2PF4U4AD

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/2PF4U4ADDAR3EBVR5NUVUUME3E \
  | 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: d3cbca70031823b206b1eb695a5184d91d7fe2f46647d821dd54e39482f04fa5

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "55bbc3b5e86b41e2954be7cfd4cf435d7041ab957ed4fb7956af0b06563f2b4b",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "hep-ph",
    "submitted_at": "2016-03-22T20:00:02Z",
    "title_canon_sha256": "78cc2c540ed48ff6c862d652ed3324edd3e6fe36aa4d0628797c390c04d8687b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1603.06946",
    "kind": "arxiv",
    "version": 1
  }
}