Pith Number

pith:M2QVDDYC

pith:2019:M2QVDDYCLAVVJG44OOAPIENEVZ

not attested not anchored not stored refs pending

Efficient passive measurement-device-independent quantum key distribution

Chun-Hui Zhang, Chun-Mei Zhang, Qin Wang

arxiv:1902.05243 v1 · 2019-02-14 · 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{M2QVDDYCLAVVJG44OOAPIENEVZ}

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	2026-05-17T23:45:29.985208Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

66a1518f02582b549b9c7380f411a4ae5fcd9deaed9f3161d51293afb9d7af26

Aliases

arxiv: 1902.05243 · arxiv_version: 1902.05243v1 · doi: 10.48550/arxiv.1902.05243 · pith_short_12: M2QVDDYCLAVV · pith_short_16: M2QVDDYCLAVVJG44 · pith_short_8: M2QVDDYC

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/M2QVDDYCLAVVJG44OOAPIENEVZ \
  | 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: 66a1518f02582b549b9c7380f411a4ae5fcd9deaed9f3161d51293afb9d7af26

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b17cf9107a667ed6f459a31b4c02265fc56e360629fb3781aa30da5db69cb570",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2019-02-14T07:19:07Z",
    "title_canon_sha256": "df96be530da39a2d4adc3f8e28d3f748358f4051be6d1cfd51108045d13a8107"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1902.05243",
    "kind": "arxiv",
    "version": 1
  }
}