Pith Number

pith:QLG2SFDS

pith:2015:QLG2SFDSB6GIS2MHMWK5SRWYIP

not attested not anchored not stored refs pending

W-state Analyzer and Multi-party Measurement-device-independent Quantum Key Distribution

Changhua Zhu, Changxing Pei, Feihu Xu

arxiv:1512.02744 v1 · 2015-12-09 · 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{QLG2SFDSB6GIS2MHMWK5SRWYIP}

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	2026-05-18T01:24:43.206851Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

82cda914720f8c8969876595d946d843e3900e3dab0bfd706ef8fd8f6ec59cb7

Aliases

arxiv: 1512.02744 · arxiv_version: 1512.02744v1 · doi: 10.48550/arxiv.1512.02744 · pith_short_12: QLG2SFDSB6GI · pith_short_16: QLG2SFDSB6GIS2MH · pith_short_8: QLG2SFDS

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/QLG2SFDSB6GIS2MHMWK5SRWYIP \
  | 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: 82cda914720f8c8969876595d946d843e3900e3dab0bfd706ef8fd8f6ec59cb7

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d708891a54d2a686e51d19774e85ffa6179c93de7b3c55a926886511a643756c",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2015-12-09T04:00:53Z",
    "title_canon_sha256": "cd45916b6279fece01af4b3ab6acc4a69d51cbc3796c1bee2ffe3bb1b13df219"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1512.02744",
    "kind": "arxiv",
    "version": 1
  }
}