Pith Number

pith:RKO3VLCE

pith:2019:RKO3VLCER5YL5KGVFF7HWFZXBZ

not attested not anchored not stored refs pending

Criteria for single photon sources with variable nonclassicality threshold

Luk\'a\v{s} Lachman, Radim Filip

arxiv:1908.02578 v1 · 2019-08-07 · 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{RKO3VLCER5YL5KGVFF7HWFZXBZ}

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	2026-07-04T23:52:10.471535Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8a9dbaac448f70bea8d5297e7b17370e65a1249cf0bf619346a61ec535c12a78

Aliases

arxiv: 1908.02578 · arxiv_version: 1908.02578v1 · doi: 10.48550/arxiv.1908.02578 · pith_short_12: RKO3VLCER5YL · pith_short_16: RKO3VLCER5YL5KGV · pith_short_8: RKO3VLCE

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/RKO3VLCER5YL5KGVFF7HWFZXBZ \
  | 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: 8a9dbaac448f70bea8d5297e7b17370e65a1249cf0bf619346a61ec535c12a78

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "89019411f1e13b972b33c9e6252166ffd8a20f3acf84d877f8245acf026c5f11",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2019-08-07T12:32:32Z",
    "title_canon_sha256": "15ae2c70163546764805aa573a0c23ba868e9c8b6d66b7f99765dc6f468886d2"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1908.02578",
    "kind": "arxiv",
    "version": 1
  }
}