Pith Number

pith:74LGZFNV

pith:2006:74LGZFNV56PNZFADAH3WTU5XM6

not attested not anchored not stored refs pending

Anisotropically high entanglement of biphotons generated in spontaneous parametric down conversion

E.V. Moreva, M.A. Efremov, M.V. Fedorov, P.A. Volkov, S.P. Kulik, S.S. Straupe

arxiv:quant-ph/0612104 v1 · 2006-12-13 · 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{74LGZFNV56PNZFADAH3WTU5XM6}

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	2026-07-04T17:03:38.005327Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ff166c95b5ef9edc940301f769d3b76788fa82be5f5fa006149947d793d2356f

Aliases

arxiv: quant-ph/0612104 · arxiv_version: quant-ph/0612104v1 · doi: 10.48550/arxiv.quant-ph/0612104 · pith_short_12: 74LGZFNV56PN · pith_short_16: 74LGZFNV56PNZFAD · pith_short_8: 74LGZFNV

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/74LGZFNV56PNZFADAH3WTU5XM6 \
  | 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: ff166c95b5ef9edc940301f769d3b76788fa82be5f5fa006149947d793d2356f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e64b6fc073cde50e0e3c482e9eb2283b6192cb995adc7c2d0a782bda4b963c33",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "quant-ph",
    "submitted_at": "2006-12-13T16:03:25Z",
    "title_canon_sha256": "d3ed8f16643f670e8417f005680b5305489176e1e2ddf739bdfabe76124afc67"
  },
  "schema_version": "1.0",
  "source": {
    "id": "quant-ph/0612104",
    "kind": "arxiv",
    "version": 1
  }
}