Pith Number

pith:RURW5TVM

pith:2011:RURW5TVM5RRTYFA6LDRFDOP4MP

not attested not anchored not stored refs pending

Fundamental And Practical Problems of QKD Security - the Actual and the Perceived Situation

Horace P. Yuen

arxiv:1109.1066 v4 · 2011-09-06 · 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{RURW5TVM5RRTYFA6LDRFDOP4MP}

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	2026-05-18T02:00:39.291022Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8d236eceacec633c141e58e251b9fc63f3ec9ff0dcd4e514a780b42e6c251c6b

Aliases

arxiv: 1109.1066 · arxiv_version: 1109.1066v4 · doi: 10.48550/arxiv.1109.1066 · pith_short_12: RURW5TVM5RRT · pith_short_16: RURW5TVM5RRTYFA6 · pith_short_8: RURW5TVM

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/RURW5TVM5RRTYFA6LDRFDOP4MP \
  | 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: 8d236eceacec633c141e58e251b9fc63f3ec9ff0dcd4e514a780b42e6c251c6b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a7bae0c35c4e7c5ded86b099a230d3cd55d8cf9ac2b18cf5208942d1fc1b315d",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2011-09-06T05:23:22Z",
    "title_canon_sha256": "1f61b337207e0a4b7f7fa1209e70aa3ed7fb5af3419dbb3ae1fbbdc75a254d63"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1109.1066",
    "kind": "arxiv",
    "version": 4
  }
}