Pith Number

pith:L4HBAT7Z

pith:2009:L4HBAT7ZO5NJGNQ6YYQPSJ3BH7

not attested not anchored not stored refs pending

A microstructured fiber source of photon pairs at widely separated wavelengths

Alexandre Kudlinski, Felix Bussieres, Geraud Bouwmans, Jean-Simon Corbeil, Joshua A. Slater, Nicolas Godbout, Stephane Virally, Suzanne Lacroix, Wolfgang Tittel

arxiv:0908.3516 v2 · 2009-08-25 · 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{L4HBAT7ZO5NJGNQ6YYQPSJ3BH7}

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	2026-05-18T02:12:23.419835Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

5f0e104ff9775a93361ec620f927613ffaaba218bfe04695040a4da3b2f26efd

Aliases

arxiv: 0908.3516 · arxiv_version: 0908.3516v2 · doi: 10.48550/arxiv.0908.3516 · pith_short_12: L4HBAT7ZO5NJ · pith_short_16: L4HBAT7ZO5NJGNQ6 · pith_short_8: L4HBAT7Z

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/L4HBAT7ZO5NJGNQ6YYQPSJ3BH7 \
  | 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: 5f0e104ff9775a93361ec620f927613ffaaba218bfe04695040a4da3b2f26efd

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ecbb110e4aa27b400371facf1ccbeb97a35fbb1ab84db9570d20f066e48baada",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2009-08-25T00:41:53Z",
    "title_canon_sha256": "a71d259985a06f322d08586f266cb50f81c9584f34352e3b83e0c34d3907a3ab"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0908.3516",
    "kind": "arxiv",
    "version": 2
  }
}