Pith Number

pith:VNP7E2D5

pith:2000:VNP7E2D57OMZ6UN26CT7VXOSEC

not attested not anchored not stored refs pending

Quantum dynamics and statistics of two coupled down-conversion processes

Jan Perina, Jaroslav Rehacek, Jiri Herec, Jr., Ladislav Mista, Viktor Jelinek

arxiv:quant-ph/0004070 v1 · 2000-04-18 · 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{VNP7E2D57OMZ6UN26CT7VXOSEC}

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	2026-05-18T03:47:09.355825Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ab5ff2687dfb999f51baf0a7faddd22091a8ebe1bf41adbe27536527345d229f

Aliases

arxiv: quant-ph/0004070 · arxiv_version: quant-ph/0004070v1 · doi: 10.48550/arxiv.quant-ph/0004070 · pith_short_12: VNP7E2D57OMZ · pith_short_16: VNP7E2D57OMZ6UN2 · pith_short_8: VNP7E2D5

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/VNP7E2D57OMZ6UN26CT7VXOSEC \
  | 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: ab5ff2687dfb999f51baf0a7faddd22091a8ebe1bf41adbe27536527345d229f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "63d4fcc631610997c4f00011a0bdd42eff4c5179dad340f7f4903405005d5422",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "quant-ph",
    "submitted_at": "2000-04-18T11:51:36Z",
    "title_canon_sha256": "cb3c4abc0407e118bb89fb13ad0551d2badfbd6ce424f2ad14157ea30e509968"
  },
  "schema_version": "1.0",
  "source": {
    "id": "quant-ph/0004070",
    "kind": "arxiv",
    "version": 1
  }
}