Pith Number

pith:LORFLJ4R

pith:2013:LORFLJ4RCP6IHQSRTFJPKYANG6

not attested not anchored not stored refs pending

Post-selection free, integrated optical source of non-degenerate, polarization entangled photon pairs

Abu Thomas, Andreas Poppe, Christine Silberhorn, Harald Herrmann, Wolfgang Sohler, Xu Yang

arxiv:1307.7939 v1 · 2013-07-30 · 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{LORFLJ4RCP6IHQSRTFJPKYANG6}

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	2026-05-18T01:48:32.908893Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

5ba255a79113fc83c2519952f5600d3790191d7fcfe201616e0c6bae707420de

Aliases

arxiv: 1307.7939 · arxiv_version: 1307.7939v1 · doi: 10.48550/arxiv.1307.7939 · pith_short_12: LORFLJ4RCP6I · pith_short_16: LORFLJ4RCP6IHQSR · pith_short_8: LORFLJ4R

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/LORFLJ4RCP6IHQSRTFJPKYANG6 \
  | 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: 5ba255a79113fc83c2519952f5600d3790191d7fcfe201616e0c6bae707420de

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "dbd790f7cb8e77e36a499614dac530bf99c8468759e8db620f8d7a4f11fd7885",
    "cross_cats_sorted": [
      "physics.optics"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2013-07-30T12:27:02Z",
    "title_canon_sha256": "5c01f148d4f2be0d836c3eb82af55ec0d6e67289031dd22fa5ec44492012840d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1307.7939",
    "kind": "arxiv",
    "version": 1
  }
}