Pith Number

pith:ECRXOF32

pith:2011:ECRXOF32BM4O4HQDDQM4CW5XK7

not attested not anchored not stored refs pending

Compact source of narrow-band counterpropagating polarization-entangled photon pairs using a single dual-periodically poled crystal

Peng Xue, Ping Xu, Shi-Ning Zhu, Xiao-Qiang Yu, Yan-Xiao Gong, Zhen-Da Xie

arxiv:1112.4551 v1 · 2011-12-20 · 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{ECRXOF32BM4O4HQDDQM4CW5XK7}

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	2026-05-18T04:05:58.573677Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

20a377177a0b38ee1e031c19c15bb757e56d9c54a07118ddf50f3cebec099f53

Aliases

arxiv: 1112.4551 · arxiv_version: 1112.4551v1 · doi: 10.48550/arxiv.1112.4551 · pith_short_12: ECRXOF32BM4O · pith_short_16: ECRXOF32BM4O4HQD · pith_short_8: ECRXOF32

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/ECRXOF32BM4O4HQDDQM4CW5XK7 \
  | 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: 20a377177a0b38ee1e031c19c15bb757e56d9c54a07118ddf50f3cebec099f53

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d6aad4f3cfde5e9c2d455a9cd175b0b5f6198af428f3000a830359a61165d0a4",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2011-12-20T03:01:53Z",
    "title_canon_sha256": "85ddfe51de2a8a891f5c9a89ab4a5f76b3b44db3a5ec63537c033da6e95abacf"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1112.4551",
    "kind": "arxiv",
    "version": 1
  }
}