Pith Number

pith:6232HIQE

pith:2004:6232HIQEVDPY7L5P2CMBRMJD7S

not attested not anchored not stored refs pending

Two-photon coincident-frequency-entanglement via extended phase matching

Franco N. C. Wong, Franz X. Kaertner, Marco Fiorentino, Marius A. Albota, Onur Kuzucu

arxiv:quant-ph/0410216 v2 · 2004-10-26 · 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{6232HIQEVDPY7L5P2CMBRMJD7S}

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	2026-07-04T16:50:27.438647Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f6b7a3a204a8df8fafafd09818b123fca42c8a3b79faeed32d99787c1544039c

Aliases

arxiv: quant-ph/0410216 · arxiv_version: quant-ph/0410216v2 · doi: 10.48550/arxiv.quant-ph/0410216 · pith_short_12: 6232HIQEVDPY · pith_short_16: 6232HIQEVDPY7L5P · pith_short_8: 6232HIQE

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/6232HIQEVDPY7L5P2CMBRMJD7S \
  | 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: f6b7a3a204a8df8fafafd09818b123fca42c8a3b79faeed32d99787c1544039c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9f090072597d4380ef2c3f9ef9b51f962a9f683b9aaf3bf20f49955280a109f0",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "quant-ph",
    "submitted_at": "2004-10-26T22:50:48Z",
    "title_canon_sha256": "99345c4737b8e6ae8c3dcf2285baf0b644b9d76409d67f079e56f3d66e16f771"
  },
  "schema_version": "1.0",
  "source": {
    "id": "quant-ph/0410216",
    "kind": "arxiv",
    "version": 2
  }
}