Pith Number

pith:GQZFI667

pith:2010:GQZFI667KVGFGJ2LVIPDH4KKRL

not attested not anchored not stored refs pending

Secure Key Rate of the BB84 Protocol using Finite Sample Bits

Ryutaroh Matsumoto, Tomohiko Uyematsu, Yousuke Sano

arxiv:1003.5766 v4 · 2010-03-30 · 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{GQZFI667KVGFGJ2LVIPDH4KKRL}

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	2026-05-18T04:35:47.758803Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3432547bdf554c53274baa1e33f14a8afcba6ccccc4efa79794965419ea464ea

Aliases

arxiv: 1003.5766 · arxiv_version: 1003.5766v4 · doi: 10.48550/arxiv.1003.5766 · pith_short_12: GQZFI667KVGF · pith_short_16: GQZFI667KVGFGJ2L · pith_short_8: GQZFI667

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/GQZFI667KVGFGJ2LVIPDH4KKRL \
  | 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: 3432547bdf554c53274baa1e33f14a8afcba6ccccc4efa79794965419ea464ea

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d4a3d22cea79b8306c54444f744ffc728910c8fc3946dd9dc573fae63c0fe02a",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2010-03-30T09:10:48Z",
    "title_canon_sha256": "200eef11b28874e92c6e61cdc5ba82ffa2f8cd564a2f004ca2a3c98214803083"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1003.5766",
    "kind": "arxiv",
    "version": 4
  }
}