Pith Number

pith:BYLKE4BT

pith:2009:BYLKE4BTSL27VKARDFXI3CY4PJ

not attested not anchored not stored refs pending

Producing high fidelity single photons with optimal brightness via waveguided parametric down-conversion

Ch. Silberhorn, K. Laiho, K. N. Cassemiro

arxiv:0910.0152 v2 · 2009-10-01 · 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{BYLKE4BTSL27VKARDFXI3CY4PJ}

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	2026-05-18T02:11:35.425713Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0e16a2703392f5faa811196e8d8b1c7a6c9b359f1b41d5beadcf87e69b4baea6

Aliases

arxiv: 0910.0152 · arxiv_version: 0910.0152v2 · doi: 10.48550/arxiv.0910.0152 · pith_short_12: BYLKE4BTSL27 · pith_short_16: BYLKE4BTSL27VKAR · pith_short_8: BYLKE4BT

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/BYLKE4BTSL27VKARDFXI3CY4PJ \
  | 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: 0e16a2703392f5faa811196e8d8b1c7a6c9b359f1b41d5beadcf87e69b4baea6

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b117443734a956d6a8bad0252bf456ad6d727fd3d13c6c43de1f2e311cfce7ee",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2009-10-01T12:24:04Z",
    "title_canon_sha256": "63ecf1b137eb353171e820b291a8e2a3e1ff8e2ac6a71698ab69252ce644e714"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0910.0152",
    "kind": "arxiv",
    "version": 2
  }
}