Pith Number

pith:BKGARB5F

pith:2012:BKGARB5FQH3IYR7J6XTZ7QOPIO

not attested not anchored not stored refs pending

Unconditional Security In Quantum Key Distribution

Horace P. Yuen

arxiv:1205.5065 v2 · 2012-05-22 · 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{BKGARB5FQH3IYR7J6XTZ7QOPIO}

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	2026-05-18T03:52:00.699089Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0a8c0887a581f68c47e9f5e79fc1cf43bcb33289603c2935753243263538a7c6

Aliases

arxiv: 1205.5065 · arxiv_version: 1205.5065v2 · doi: 10.48550/arxiv.1205.5065 · pith_short_12: BKGARB5FQH3I · pith_short_16: BKGARB5FQH3IYR7J · pith_short_8: BKGARB5F

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/BKGARB5FQH3IYR7J6XTZ7QOPIO \
  | 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: 0a8c0887a581f68c47e9f5e79fc1cf43bcb33289603c2935753243263538a7c6

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a5f40b27798f7c9a331f685b43a5eac4d450a8c6f8d00375170602dc62d7533d",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2012-05-22T22:12:07Z",
    "title_canon_sha256": "3e50a0a522f4a4e2b3007439110df7a705ddd0f3f1b119ba5d25d5e325af875c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1205.5065",
    "kind": "arxiv",
    "version": 2
  }
}