Pith Number

pith:4UPQBACZ

pith:2011:4UPQBACZB5NAL2BRZVT7CJUBRV

not attested not anchored not stored refs pending

Spin Correlations in $e^{+}e^{-}$ Pair Creation by Two-Photons and Entanglement in QED

N. Yongram

arxiv:1101.2540 v1 · 2011-01-13 · quant-ph · hep-th

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{4UPQBACZB5NAL2BRZVT7CJUBRV}

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	2026-05-18T02:22:57.954395Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e51f0080590f5a05e831cd67f126818d734d08ebad49b2fa5284dc371c43f80d

Aliases

arxiv: 1101.2540 · arxiv_version: 1101.2540v1 · doi: 10.48550/arxiv.1101.2540 · pith_short_12: 4UPQBACZB5NA · pith_short_16: 4UPQBACZB5NAL2BR · pith_short_8: 4UPQBACZ

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/4UPQBACZB5NAL2BRZVT7CJUBRV \
  | 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: e51f0080590f5a05e831cd67f126818d734d08ebad49b2fa5284dc371c43f80d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1c8ff2aea559e9802834954548d99ce25ceee66c3d053b99a199561b845b5b7c",
    "cross_cats_sorted": [
      "hep-th"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2011-01-13T11:33:34Z",
    "title_canon_sha256": "398eae0d78500152a68faf802c7ea40dad13b15a94eb8e726ab49871c922347c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1101.2540",
    "kind": "arxiv",
    "version": 1
  }
}