Pith Number

pith:FJAPQ6GM

pith:2018:FJAPQ6GMMDV6DCJZQ7FDNPYE6J

not attested not anchored not stored refs pending

A direct GHz-clocked phase and intensity modulated transmitter applied to quantum key distribution

A. J. Shields, G. L. Roberts, J. F. Dynes, M. Lucamarini, S. J. Savory, Z. L. Yuan

arxiv:1809.04876 v1 · 2018-09-13 · 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{FJAPQ6GMMDV6DCJZQ7FDNPYE6J}

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	2026-05-18T00:05:47.252623Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2a40f878cc60ebe1893987ca36bf04f24dd3f5c8c89d0e963c472eaf5633c257

Aliases

arxiv: 1809.04876 · arxiv_version: 1809.04876v1 · doi: 10.48550/arxiv.1809.04876 · pith_short_12: FJAPQ6GMMDV6 · pith_short_16: FJAPQ6GMMDV6DCJZ · pith_short_8: FJAPQ6GM

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/FJAPQ6GMMDV6DCJZQ7FDNPYE6J \
  | 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: 2a40f878cc60ebe1893987ca36bf04f24dd3f5c8c89d0e963c472eaf5633c257

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8a70e71ef27bf2e524094f04469d8b913fbc93b0d8b4a2640e7bcb516c1ee9dd",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2018-09-13T10:28:02Z",
    "title_canon_sha256": "3257ea5539c9852c3f3be80fbc35ba7359fd857917ac52d7703928ccd0973206"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1809.04876",
    "kind": "arxiv",
    "version": 1
  }
}