Pith Number

pith:N72ZGAEU

pith:2021:N72ZGAEUTCD6JUZL544N4LEEGR

not attested not anchored not stored refs pending

Optimal interferometry for Bell$-$nonclassicality by a vacuum$-$one$-$photon qubit

Antonio Mandarino, Marcin Karczewski, Marcin Markiewicz, Marek \.Zukowski, Tamoghna Das

arxiv:2109.10170 v2 · 2021-09-21 · 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{N72ZGAEUTCD6JUZL544N4LEEGR}

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	2026-07-05T05:09:12.995705Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6ff59300949887e4d32bef38de2c84346f821d4bd6599b371e9b39e53ec859e5

Aliases

arxiv: 2109.10170 · arxiv_version: 2109.10170v2 · doi: 10.48550/arxiv.2109.10170 · pith_short_12: N72ZGAEUTCD6 · pith_short_16: N72ZGAEUTCD6JUZL · pith_short_8: N72ZGAEU

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/N72ZGAEUTCD6JUZL544N4LEEGR \
  | 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: 6ff59300949887e4d32bef38de2c84346f821d4bd6599b371e9b39e53ec859e5

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ec813dcef9c8c3d5fbba475a09ffef867dd1b69244b62cde24e3db1103214ca1",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2021-09-21T13:37:07Z",
    "title_canon_sha256": "4822dcd90a5b97955339c97918cc4b81d92162bf86f5452ce81d993550f97f2c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2109.10170",
    "kind": "arxiv",
    "version": 2
  }
}