Pith Number

pith:W4XCOB6Z

pith:2015:W4XCOB6Z623OQD3C7SAJ3TVIEY

not attested not anchored not stored refs pending

Practical security bounds against the Trojan-horse attack in quantum key distribution

Andrew J. Shields, Iris Choi, James F. Dynes, Marco Lucamarini, Martin B. Ward, Zhiliang Yuan

arxiv:1506.01989 v2 · 2015-06-05 · 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{W4XCOB6Z623OQD3C7SAJ3TVIEY}

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	2026-05-18T01:33:32.024039Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b72e2707d9f6b6e80f62fc809dcea8261c47f9733f0f64317d6d2725c46f4b3d

Aliases

arxiv: 1506.01989 · arxiv_version: 1506.01989v2 · doi: 10.48550/arxiv.1506.01989 · pith_short_12: W4XCOB6Z623O · pith_short_16: W4XCOB6Z623OQD3C · pith_short_8: W4XCOB6Z

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/W4XCOB6Z623OQD3C7SAJ3TVIEY \
  | 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: b72e2707d9f6b6e80f62fc809dcea8261c47f9733f0f64317d6d2725c46f4b3d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "28e862e83e74ba94ec1dd77c8a0bce920975e2ef5a3911f094662ffc0e136590",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2015-06-05T17:25:40Z",
    "title_canon_sha256": "bef98ba3706c2c8335af027ca3cfbe170db0d256d7028d0ddf432b6f83ad756e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1506.01989",
    "kind": "arxiv",
    "version": 2
  }
}