Pith Number

pith:OXMOL4JV

pith:2007:OXMOL4JVG4GL67LYK6KDHZIHHI

not attested not anchored not stored refs pending

Practical quantum key distribution over 60 hours at an optical fiber distance of 20km using weak and vacuum decoy pulses for enhanced security

A. J. Shields, A. W. Sharpe, J. F. Dynes, Z. L. Yuan

arxiv:0706.2792 v2 · 2007-06-19 · 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{OXMOL4JVG4GL67LYK6KDHZIHHI}

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	2026-05-18T04:24:14.356462Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

75d8e5f135370cbf7d78579433e5073a13688038b5d61aabef02aea835f39997

Aliases

arxiv: 0706.2792 · arxiv_version: 0706.2792v2 · doi: 10.48550/arxiv.0706.2792 · pith_short_12: OXMOL4JVG4GL · pith_short_16: OXMOL4JVG4GL67LY · pith_short_8: OXMOL4JV

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/OXMOL4JVG4GL67LYK6KDHZIHHI \
  | 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: 75d8e5f135370cbf7d78579433e5073a13688038b5d61aabef02aea835f39997

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a94aa0a55d20fd72e4c71f25ac45214519cf1107646a6aab0c9617a868f4c644",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2007-06-19T14:06:02Z",
    "title_canon_sha256": "1e254b7ac42dee7e9f871ea79871163b3f943dc66ab2cd50782a270181d51946"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0706.2792",
    "kind": "arxiv",
    "version": 2
  }
}