Pith Number

pith:Z6LQQXGF

pith:2012:Z6LQQXGFDOBV7MAG4XRDEM4C6V

not attested not anchored not stored refs pending

Effects of preparation and measurement misalignments on the security of the BB84 quantum key distribution protocol

Erik Woodhead, Stefano Pironio

arxiv:1209.6479 v4 · 2012-09-28 · 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{Z6LQQXGFDOBV7MAG4XRDEM4C6V}

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	2026-05-18T03:30:25.602815Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

cf97085cc51b835fb006e5e2323382f56e79987ec2ffcfc99bd1fdfa3a4d9193

Aliases

arxiv: 1209.6479 · arxiv_version: 1209.6479v4 · doi: 10.48550/arxiv.1209.6479 · pith_short_12: Z6LQQXGFDOBV · pith_short_16: Z6LQQXGFDOBV7MAG · pith_short_8: Z6LQQXGF

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/Z6LQQXGFDOBV7MAG4XRDEM4C6V \
  | 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: cf97085cc51b835fb006e5e2323382f56e79987ec2ffcfc99bd1fdfa3a4d9193

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c56b135f465f423344df8b711c1d7ac4269bb96a7c20cdc11ae32e31cc0abf49",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2012-09-28T10:55:41Z",
    "title_canon_sha256": "c68cd6c1ba0f4f4f4c3d0ac4832a33c6370494be170d2f54a1044488497ddc1f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1209.6479",
    "kind": "arxiv",
    "version": 4
  }
}