Pith Number

pith:4M3CAEHP

pith:2015:4M3CAEHPXUT73KRGOOBXIYP2CX

not attested not anchored not stored refs pending

Security of differential quadrature phase shift quantum key distribution

Masato Koashi, Shun Kawakami, Toshihiko Sasaki

arxiv:1512.08129 v2 · 2015-12-26 · 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{4M3CAEHPXUT73KRGOOBXIYP2CX}

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	2026-05-18T01:07:17.171304Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e3362010efbd27fdaa2673837461fa15f8175db8cb2a147223bfa0faa5889f26

Aliases

arxiv: 1512.08129 · arxiv_version: 1512.08129v2 · doi: 10.48550/arxiv.1512.08129 · pith_short_12: 4M3CAEHPXUT7 · pith_short_16: 4M3CAEHPXUT73KRG · pith_short_8: 4M3CAEHP

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/4M3CAEHPXUT73KRGOOBXIYP2CX \
  | 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: e3362010efbd27fdaa2673837461fa15f8175db8cb2a147223bfa0faa5889f26

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "99cdfc47ede0347b765be61a9df43123b6e38e4a2d369e9c71def229fb957a08",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2015-12-26T18:17:10Z",
    "title_canon_sha256": "9eff4282203b22c41f77f22b6d3282292edec18dcf7432f14156d53525ae9738"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1512.08129",
    "kind": "arxiv",
    "version": 2
  }
}