Pith Number

pith:L5GF2G2Z

pith:2010:L5GF2G2ZRPNEVOMT2B3DU2IUDG

not attested not anchored not stored refs pending

Security of "Counterfactual Quantum Cryptography"

Guang-Can Guo, Hong-Wei Li, Zheng-Fu Han, Zhen-Qiang Yin

arxiv:1007.3066 v1 · 2010-07-19 · 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{L5GF2G2ZRPNEVOMT2B3DU2IUDG}

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	2026-05-18T04:38:15.319634Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

5f4c5d1b598bda4ab993d0763a691419b66e0c6727eff8c4d44e1117f9853e06

Aliases

arxiv: 1007.3066 · arxiv_version: 1007.3066v1 · doi: 10.48550/arxiv.1007.3066 · pith_short_12: L5GF2G2ZRPNE · pith_short_16: L5GF2G2ZRPNEVOMT · pith_short_8: L5GF2G2Z

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/L5GF2G2ZRPNEVOMT2B3DU2IUDG \
  | 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: 5f4c5d1b598bda4ab993d0763a691419b66e0c6727eff8c4d44e1117f9853e06

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "118c9698904dbabf6f195f9ab11a79aee0fe7379d2f8f10c4bff1f724dae9766",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2010-07-19T06:39:32Z",
    "title_canon_sha256": "7daf2f36538fd692136c99c8cbbff9ecf6f5df6aaff3f36718365c35a652a3e7"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1007.3066",
    "kind": "arxiv",
    "version": 1
  }
}