Pith Number

pith:NULXXWWU

pith:2015:NULXXWWUBWDRGLO4FUHOAXYFIB

not attested not anchored not stored refs pending

Two photon physics. Personal recollection

Ilya F. Ginzburg

arxiv:1508.06581 v2 · 2015-08-26 · 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{NULXXWWUBWDRGLO4FUHOAXYFIB}

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	2026-05-18T01:27:53.591040Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6d177bdad40d87132ddc2d0ee05f05404998fa049365ece507c1a5fe897c9036

Aliases

arxiv: 1508.06581 · arxiv_version: 1508.06581v2 · doi: 10.48550/arxiv.1508.06581 · pith_short_12: NULXXWWUBWDR · pith_short_16: NULXXWWUBWDRGLO4 · pith_short_8: NULXXWWU

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/NULXXWWUBWDRGLO4FUHOAXYFIB \
  | 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: 6d177bdad40d87132ddc2d0ee05f05404998fa049365ece507c1a5fe897c9036

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "48a86777328eefa7efed5d76da9c08f0872640e7cceb5440afb0a7206406eea0",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "hep-ph",
    "submitted_at": "2015-08-26T17:33:51Z",
    "title_canon_sha256": "70de53338c0e44e3af07f418d560beed2bdd6b38951d3bb75e3c3642f9fe49b7"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1508.06581",
    "kind": "arxiv",
    "version": 2
  }
}