Pith Number

pith:6TYW2RLB

pith:2012:6TYW2RLBH266CBL7KLEMYWFLJK

not attested not anchored not stored refs pending

An improved two-way continuous-variable quantum key distribution protocol with added noise in homodyne detection

Hong Guo, Maozhu Sun, Xiang Peng

arxiv:1208.6249 v2 · 2012-08-30 · 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{6TYW2RLBH266CBL7KLEMYWFLJK}

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	2026-05-18T03:26:32.419244Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f4f16d45613ebde1057f52c8cc58ab4abce8e9e0c5ae9d49969c9bc25fc23574

Aliases

arxiv: 1208.6249 · arxiv_version: 1208.6249v2 · doi: 10.48550/arxiv.1208.6249 · pith_short_12: 6TYW2RLBH266 · pith_short_16: 6TYW2RLBH266CBL7 · pith_short_8: 6TYW2RLB

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/6TYW2RLBH266CBL7KLEMYWFLJK \
  | 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: f4f16d45613ebde1057f52c8cc58ab4abce8e9e0c5ae9d49969c9bc25fc23574

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d67b34331f35807d5c19c046345034419d0d050934ebf6d495d4a05d19ce2f26",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2012-08-30T18:06:18Z",
    "title_canon_sha256": "d45d5c7f3f03a8672e80df001b9b87086c625bf01edd6e59909422ec1a070cff"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1208.6249",
    "kind": "arxiv",
    "version": 2
  }
}