Pith Number

pith:C5IEQIOB

pith:2004:C5IEQIOB4MRNB2B2RXZN6PKSCQ

not attested not anchored not stored refs pending

Stability of Phase-modulated Quantum Key Distribution System

Guang-Can Guo, Xiao-Fan Mo, You-zhen Gui, Zheng-Fu Han

arxiv:quant-ph/0408031 v1 · 2004-08-05 · 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{C5IEQIOB4MRNB2B2RXZN6PKSCQ}

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	2026-07-04T16:50:22.595102Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

17504821c1e322d0e83a8df2df3d52140aa804512089cd6a220fc5eee8b123c8

Aliases

arxiv: quant-ph/0408031 · arxiv_version: quant-ph/0408031v1 · doi: 10.48550/arxiv.quant-ph/0408031 · pith_short_12: C5IEQIOB4MRN · pith_short_16: C5IEQIOB4MRNB2B2 · pith_short_8: C5IEQIOB

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/C5IEQIOB4MRNB2B2RXZN6PKSCQ \
  | 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: 17504821c1e322d0e83a8df2df3d52140aa804512089cd6a220fc5eee8b123c8

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "55fed49e25ad75e3d139cfa906c69c1df4b129d8f5c698f2fcf77aa07c94b248",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "quant-ph",
    "submitted_at": "2004-08-05T00:22:44Z",
    "title_canon_sha256": "b9b4407ba505ae9e582d719d29a6752dd4aa3a58b112a5e77d656899bf988167"
  },
  "schema_version": "1.0",
  "source": {
    "id": "quant-ph/0408031",
    "kind": "arxiv",
    "version": 1
  }
}