Pith Number

pith:VEWUKKXC

pith:1998:VEWUKKXCZGGEY5FG7KQOFXDUM7

not attested not anchored not stored refs pending

Long-time dynamics of spontaneous parametric down-conversion and quantum limitations of conversion efficiency

Michael Fleischhauer, Oliver Veits

arxiv:quant-ph/9809089 v1 · 1998-09-30 · 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{VEWUKKXCZGGEY5FG7KQOFXDUM7}

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	2026-05-18T01:37:52.731624Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a92d452ae2c98c4c74a6faa0e2dc7467ef1c4ede6d5bf34f82098056e85ea333

Aliases

arxiv: quant-ph/9809089 · arxiv_version: quant-ph/9809089v1 · doi: 10.48550/arxiv.quant-ph/9809089 · pith_short_12: VEWUKKXCZGGE · pith_short_16: VEWUKKXCZGGEY5FG · pith_short_8: VEWUKKXC

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/VEWUKKXCZGGEY5FG7KQOFXDUM7 \
  | 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: a92d452ae2c98c4c74a6faa0e2dc7467ef1c4ede6d5bf34f82098056e85ea333

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "14fdc4d727fa1fef2c1ae83b8949bedac98fdcda42195d29f071d6227bb2afe7",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "quant-ph",
    "submitted_at": "1998-09-30T14:46:06Z",
    "title_canon_sha256": "824d4210417609dd5c2592fc28b306028c0c74037c606a03b8069351570816db"
  },
  "schema_version": "1.0",
  "source": {
    "id": "quant-ph/9809089",
    "kind": "arxiv",
    "version": 1
  }
}