Pith Number

pith:ZDS6BTKR

pith:2012:ZDS6BTKRBUKTLWOSSBHN6YP3FU

not attested not anchored not stored refs pending

Security proof of the unbalanced phase-encoded BB84 protocol

Agnes Ferenczi, Norbert L\"utkenhaus, Varun Narasimhachar

arxiv:1206.6668 v1 · 2012-06-28 · 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{ZDS6BTKRBUKTLWOSSBHN6YP3FU}

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	2026-05-18T03:23:03.925775Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c8e5e0cd510d1535d9d2904edf61fb2d232ec8f71f7eee21ef983f67b7e4f609

Aliases

arxiv: 1206.6668 · arxiv_version: 1206.6668v1 · doi: 10.48550/arxiv.1206.6668 · pith_short_12: ZDS6BTKRBUKT · pith_short_16: ZDS6BTKRBUKTLWOS · pith_short_8: ZDS6BTKR

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/ZDS6BTKRBUKTLWOSSBHN6YP3FU \
  | 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: c8e5e0cd510d1535d9d2904edf61fb2d232ec8f71f7eee21ef983f67b7e4f609

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ef6a92730b55257d5fb524a61097ca0dbcec2caafb757e9cc1985fa14fed5e77",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2012-06-28T12:59:24Z",
    "title_canon_sha256": "3493e493ed3c4b103816614482cf310304db3304860fda3d3567413a0b68f8bd"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1206.6668",
    "kind": "arxiv",
    "version": 1
  }
}