Pith Number

pith:2NTRXF77

pith:2018:2NTRXF77TCGIAJDESPBFWFXIV7

not attested not anchored not stored refs pending

Simple security proof of twin-field type quantum key distribution protocol

Hoi-Kwong Lo, Koji Azuma, Marcos Curty

arxiv:1807.07667 v2 · 2018-07-19 · 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{2NTRXF77TCGIAJDESPBFWFXIV7}

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.

Cited by

1 paper in Pith

General sending-or-not-sending twin field protocol for quantum key distribution with asymmetric source parameters

Receipt and verification

First computed	2026-07-05T01:17:55.258055Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d3671b97ff988c80246493c25b16e8afdd13d51579c9940a550e5606746feae5

Aliases

arxiv: 1807.07667 · arxiv_version: 1807.07667v2 · doi: 10.48550/arxiv.1807.07667 · pith_short_12: 2NTRXF77TCGI · pith_short_16: 2NTRXF77TCGIAJDE · pith_short_8: 2NTRXF77

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/2NTRXF77TCGIAJDESPBFWFXIV7 \
  | 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: d3671b97ff988c80246493c25b16e8afdd13d51579c9940a550e5606746feae5

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "bee7e44d148a09b07e6cb6718b753d015c4e7562087d41f46007341c3f916f37",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2018-07-19T23:54:21Z",
    "title_canon_sha256": "670c492e39bef3508c18a76e4a012e9a249aacb2f78ed9762c32e5a94383ccd1"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1807.07667",
    "kind": "arxiv",
    "version": 2
  }
}