Pith Number

pith:VE4KSWVT

pith:2011:VE4KSWVTYHH3XQQTCHAI7ZZIO4

not attested not anchored not stored refs pending

Secure gated detection scheme for quantum cryptography

Johannes Skaar, Lars Lydersen, Vadim Makarov

arxiv:1101.5698 v1 · 2011-01-29 · 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{VE4KSWVTYHH3XQQTCHAI7ZZIO4}

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	2026-05-18T04:26:54.507493Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a938a95ab3c1cfbbc21311c08fe7287706bd7b3539e9bc34fbedb9abe0e453f3

Aliases

arxiv: 1101.5698 · arxiv_version: 1101.5698v1 · doi: 10.48550/arxiv.1101.5698 · pith_short_12: VE4KSWVTYHH3 · pith_short_16: VE4KSWVTYHH3XQQT · pith_short_8: VE4KSWVT

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/VE4KSWVTYHH3XQQTCHAI7ZZIO4 \
  | 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: a938a95ab3c1cfbbc21311c08fe7287706bd7b3539e9bc34fbedb9abe0e453f3

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6bcf307c035a402aeeac8654b1d693601c4c1c77bfef8886369ada729350309b",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2011-01-29T15:34:18Z",
    "title_canon_sha256": "c32d768257e901cbc18d139a2ec0ce97512664de8baea7e20f4aca238a5f5615"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1101.5698",
    "kind": "arxiv",
    "version": 1
  }
}