Pith Number

pith:FCQ3RUWI

pith:2013:FCQ3RUWIECYVHV5HBWET3JNSOH

not attested not anchored not stored refs pending

Device-independent quantum key distribution with spin-coupled cavities

Alejandro M\'attar, Antonio Ac\'in, Jonatan Bohr Brask

arxiv:1306.2571 v1 · 2013-06-11 · 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{FCQ3RUWIECYVHV5HBWET3JNSOH}

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	2026-05-18T03:03:56.765386Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

28a1b8d2c820b153d7a70d893da5b271dee4694e0d90747f82c6d590ea212927

Aliases

arxiv: 1306.2571 · arxiv_version: 1306.2571v1 · doi: 10.48550/arxiv.1306.2571 · pith_short_12: FCQ3RUWIECYV · pith_short_16: FCQ3RUWIECYVHV5H · pith_short_8: FCQ3RUWI

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/FCQ3RUWIECYVHV5HBWET3JNSOH \
  | 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: 28a1b8d2c820b153d7a70d893da5b271dee4694e0d90747f82c6d590ea212927

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1f0e021d2cc3ef8a096ec6045f41d751e813fb38429e7af2fe7d2532071bea3b",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2013-06-11T16:14:47Z",
    "title_canon_sha256": "7c558981f954c5cb5f8a1f5525606a4c08937c42c48eb7347602eef9fb430a62"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1306.2571",
    "kind": "arxiv",
    "version": 1
  }
}