Pith Number

pith:HAFUY5VN

pith:2002:HAFUY5VN4MF4KA3WKPLMY77RE5

not attested not anchored not stored refs pending

Counter-propagating entangled photons from a waveguide with periodic nonlinearity

Alexander V. Sergienko, Bahaa E. A. Saleh, Giovanni Di Giuseppe, Malvin C. Teich, Mark C. Booth, Mete Atature

arxiv:quant-ph/0201150 v1 · 2002-01-31 · 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{HAFUY5VN4MF4KA3WKPLMY77RE5}

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	2026-07-04T16:35:59.083865Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

380b4c76ade30bc5037653d6cc7ff12752e07720de9a659704c387a0318586d4

Aliases

arxiv: quant-ph/0201150 · arxiv_version: quant-ph/0201150v1 · doi: 10.48550/arxiv.quant-ph/0201150 · pith_short_12: HAFUY5VN4MF4 · pith_short_16: HAFUY5VN4MF4KA3W · pith_short_8: HAFUY5VN

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/HAFUY5VN4MF4KA3WKPLMY77RE5 \
  | 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: 380b4c76ade30bc5037653d6cc7ff12752e07720de9a659704c387a0318586d4

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "cc6ac70c2de314c034f7ca5721b90e5ddd18054685fb8257b3b6a8f42fde9808",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "quant-ph",
    "submitted_at": "2002-01-31T17:36:02Z",
    "title_canon_sha256": "7e203cdd0e43ba0456b6d61fbc207df13fddd6fd3ef26ef745c7296e77f54d0d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "quant-ph/0201150",
    "kind": "arxiv",
    "version": 1
  }
}