Pith Number

pith:G2V4662K

pith:2006:G2V4662KCOWVU735Y6VDFBI5AK

not attested not anchored not stored refs pending

Simple protocol for secure decoy-state quantum key distribution with a loosely controlled source

Cheng-Zhi Peng, Jian-Wei Pan, Xiang-Bin Wang

arxiv:quant-ph/0609137 v2 · 2006-09-18 · 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{G2V4662KCOWVU735Y6VDFBI5AK}

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	2026-07-04T17:03:34.111797Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

36abcf7b4a13ad5a7f7dc7aa32851d0281d4595508deac58093778924d214c7d

Aliases

arxiv: quant-ph/0609137 · arxiv_version: quant-ph/0609137v2 · doi: 10.48550/arxiv.quant-ph/0609137 · pith_short_12: G2V4662KCOWV · pith_short_16: G2V4662KCOWVU735 · pith_short_8: G2V4662K

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/G2V4662KCOWVU735Y6VDFBI5AK \
  | 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: 36abcf7b4a13ad5a7f7dc7aa32851d0281d4595508deac58093778924d214c7d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "17efb8d83f57be9ee1baed7a83770faa14fe2f89cf82ae7a287fa95cca0ff231",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "quant-ph",
    "submitted_at": "2006-09-18T18:55:24Z",
    "title_canon_sha256": "2517a22cc96740e75dbd814fd595d888d10d4f627b2ec15222506198a27e4440"
  },
  "schema_version": "1.0",
  "source": {
    "id": "quant-ph/0609137",
    "kind": "arxiv",
    "version": 2
  }
}