Pith Number

pith:E5ORZFSP

pith:2007:E5ORZFSPSFBGGGNUYCQ2O5JHPO

not attested not anchored not stored refs pending

Key rate of quantum key distribution with hashed two-way classical communication

Ryutaroh Matsumoto, Shun Watanabe, Tomohiko Uyematsu, Yasuhito Kawano

arxiv:0705.2904 v2 · 2007-05-21 · 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{E5ORZFSPSFBGGGNUYCQ2O5JHPO}

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	2026-05-18T04:09:16.535677Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

275d1c964f91426319b4c0a1a775277bbba8e636601b5d4e79f5f6f07e3b02ff

Aliases

arxiv: 0705.2904 · arxiv_version: 0705.2904v2 · doi: 10.48550/arxiv.0705.2904 · pith_short_12: E5ORZFSPSFBG · pith_short_16: E5ORZFSPSFBGGGNU · pith_short_8: E5ORZFSP

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/E5ORZFSPSFBGGGNUYCQ2O5JHPO \
  | 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: 275d1c964f91426319b4c0a1a775277bbba8e636601b5d4e79f5f6f07e3b02ff

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8845d502a11737a0dbc6dbff65baa1da3eb428f4e028b117d15bf85b60d73973",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "quant-ph",
    "submitted_at": "2007-05-21T05:16:35Z",
    "title_canon_sha256": "e8a26f267fad832a6e1ee5c8afd43a4d087c82dd591b3681d4365c6dac4a8746"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0705.2904",
    "kind": "arxiv",
    "version": 2
  }
}