Pith Number

pith:4NR7JROP

pith:2011:4NR7JROPUGTFFOOR2R3RTQQS3D

not attested not anchored not stored refs pending

Quantum key distribution with delayed privacy amplification and its application to security proof of a two-way deterministic protocol

Chi-Hang Fred Fung, H. F. Chau, Qing-yu Cai, Xiongfeng Ma

arxiv:1111.4411 v2 · 2011-11-18 · 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{4NR7JROPUGTFFOOR2R3RTQQS3D}

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	2026-05-18T04:00:28.234758Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e363f4c5cfa1a652b9d1d47719c212d8ef6f48c16ad41d6a466be2780b53292e

Aliases

arxiv: 1111.4411 · arxiv_version: 1111.4411v2 · doi: 10.48550/arxiv.1111.4411 · pith_short_12: 4NR7JROPUGTF · pith_short_16: 4NR7JROPUGTFFOOR · pith_short_8: 4NR7JROP

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/4NR7JROPUGTFFOOR2R3RTQQS3D \
  | 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: e363f4c5cfa1a652b9d1d47719c212d8ef6f48c16ad41d6a466be2780b53292e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d97e3db1d76b5fffe2631462b55b83247fb50af8f72449e4e99c610feba7cbc1",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2011-11-18T16:24:32Z",
    "title_canon_sha256": "28c42a35f5c1f90067325df37760eb403e3abbde06a495abb0fac01e8a91a84c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1111.4411",
    "kind": "arxiv",
    "version": 2
  }
}