Pith Number

pith:IZGPWLIY

pith:2019:IZGPWLIYDRB7PQOXNAWSUHDPTX

not attested not anchored not stored refs pending

Satellite quantum communications when man-in-the-middle attacks are excluded

Alexander Ling, James A Grieve, Robert Bedington, Tom Vergoossen

arxiv:1903.02176 v3 · 2019-03-06 · 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{IZGPWLIYDRB7PQOXNAWSUHDPTX}

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	2026-05-17T23:47:50.554165Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

464cfb2d181c43f7c1d7682d2a1c6f9def28c830d538bc43e3c391c2d98b04e4

Aliases

arxiv: 1903.02176 · arxiv_version: 1903.02176v3 · doi: 10.48550/arxiv.1903.02176 · pith_short_12: IZGPWLIYDRB7 · pith_short_16: IZGPWLIYDRB7PQOX · pith_short_8: IZGPWLIY

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/IZGPWLIYDRB7PQOXNAWSUHDPTX \
  | 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: 464cfb2d181c43f7c1d7682d2a1c6f9def28c830d538bc43e3c391c2d98b04e4

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a680a4e03a1cfbcc9358bbdbb8ce44474f2ed5a3939adb5b65a409ae0367a9b3",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2019-03-06T05:25:18Z",
    "title_canon_sha256": "9499cb1a21087ef9b2a8dd8bcaf5a0ccbd6a4e488a73aa3b397b1b368fa931e6"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1903.02176",
    "kind": "arxiv",
    "version": 3
  }
}