Pith Number

pith:E7F7FXFU

pith:2015:E7F7FXFU7IONCAYI4MNOEDVZDG

not attested not anchored not stored refs pending

Discrete-variable measurement-device-independent quantum key distribution suitable for metropolitan networks

Bing Qi, Feihu Xu, Hoi-Kwong Lo, Li Qian, Marcos Curty

arxiv:1506.04819 v2 · 2015-06-16 · 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{E7F7FXFU7IONCAYI4MNOEDVZDG}

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	2026-05-18T01:25:46.951149Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

27cbf2dcb4fa1cd10308e31ae20eb919aa9bed7aa356acc63e41a9d1ea96c665

Aliases

arxiv: 1506.04819 · arxiv_version: 1506.04819v2 · doi: 10.48550/arxiv.1506.04819 · pith_short_12: E7F7FXFU7ION · pith_short_16: E7F7FXFU7IONCAYI · pith_short_8: E7F7FXFU

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/E7F7FXFU7IONCAYI4MNOEDVZDG \
  | 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: 27cbf2dcb4fa1cd10308e31ae20eb919aa9bed7aa356acc63e41a9d1ea96c665

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "25cf0b2ba06e7b387baaa49b13641dcf7abea5ff7f197020025fa0db872eaaf6",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2015-06-16T02:17:09Z",
    "title_canon_sha256": "34b1f5fb15e9d8aca38d9eb3d5990cc8724b26af1f2dabaccc5c44bfdafd343e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1506.04819",
    "kind": "arxiv",
    "version": 2
  }
}