Pith Number

pith:EVQVVC63

pith:2009:EVQVVC63KPGTPUMRLC6RGRAGYO

not attested not anchored not stored refs pending

Security of quantum key distribution with arbitrary individual imperfections

Johannes Skaar, Lars Lydersen, {\O}ystein Mar{\o}y

arxiv:0903.3525 v3 · 2009-03-20 · 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{EVQVVC63KPGTPUMRLC6RGRAGYO}

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	2026-05-18T04:39:59.610982Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

25615a8bdb53cd37d19158bd134406c3b4e3cedaeaa51f83d9a4be0b06a9214a

Aliases

arxiv: 0903.3525 · arxiv_version: 0903.3525v3 · doi: 10.48550/arxiv.0903.3525 · pith_short_12: EVQVVC63KPGT · pith_short_16: EVQVVC63KPGTPUMR · pith_short_8: EVQVVC63

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/EVQVVC63KPGTPUMRLC6RGRAGYO \
  | 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: 25615a8bdb53cd37d19158bd134406c3b4e3cedaeaa51f83d9a4be0b06a9214a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4a6ff28d8d2a8a5938a49f466b5fbccf59c8039296204bd485e2f8e9f9914751",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2009-03-20T19:09:09Z",
    "title_canon_sha256": "d225a6538d9531ce65dc5991647e1e2435886522a317965b88593ab1e636033f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0903.3525",
    "kind": "arxiv",
    "version": 3
  }
}