Pith Number

pith:GJP5LE6B

pith:2013:GJP5LE6BS3L7FBIEVQN7NPE7ZP

not attested not anchored not stored refs pending

On-chip low loss heralded source of pure single photons

Benjamin J. Metcalf, Ian A. Walmsley, Justin B. Spring, Marco Barbieri, Martin J. Booth, Merritt Moore, Nathan K. Langford, Nicholas Thomas-Peter, Patrick S. Salter, Peter C. Humphreys, W. Steven Kolthammer, Xian-Min Jin

arxiv:1304.7781 v1 · 2013-04-29 · quant-ph · physics.optics

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{GJP5LE6BS3L7FBIEVQN7NPE7ZP}

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	2026-05-18T03:21:23.393918Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

325fd593c196d7f28504ac1bf6bc9fcbccf543c927f3988c0839bfd7a4855a2f

Aliases

arxiv: 1304.7781 · arxiv_version: 1304.7781v1 · doi: 10.48550/arxiv.1304.7781 · pith_short_12: GJP5LE6BS3L7 · pith_short_16: GJP5LE6BS3L7FBIE · pith_short_8: GJP5LE6B

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/GJP5LE6BS3L7FBIEVQN7NPE7ZP \
  | 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: 325fd593c196d7f28504ac1bf6bc9fcbccf543c927f3988c0839bfd7a4855a2f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e3d812d9d24e5e444eab81d0d024f7a66a085d137d0f083a22532186bc00865f",
    "cross_cats_sorted": [
      "physics.optics"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2013-04-29T20:02:03Z",
    "title_canon_sha256": "70486752f5c6e673ac3dcdfec131152aca15063f60746496848ddd94a4151917"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1304.7781",
    "kind": "arxiv",
    "version": 1
  }
}