Pith Number

pith:M34ENN56

pith:2005:M34ENN56YYD5OSBF2EODAVF7PV

not attested not anchored not stored refs pending

Auto-compensating differential phase shift quantum key distribution

Chunyuan Zhou, Guang Wu, Heping Zeng, Xiaohong Han

arxiv:quant-ph/0501025 v1 · 2005-01-06 · 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{M34ENN56YYD5OSBF2EODAVF7PV}

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	2026-07-04T14:46:54.151921Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

66f846b7bec607d74825d11c3054bf7d4958c496950041c24e68e0489f1c0d7a

Aliases

arxiv: quant-ph/0501025 · arxiv_version: quant-ph/0501025v1 · doi: 10.48550/arxiv.quant-ph/0501025 · pith_short_12: M34ENN56YYD5 · pith_short_16: M34ENN56YYD5OSBF · pith_short_8: M34ENN56

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/M34ENN56YYD5OSBF2EODAVF7PV \
  | 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: 66f846b7bec607d74825d11c3054bf7d4958c496950041c24e68e0489f1c0d7a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "501bcdd5295dbd5acb03b6bdbaad96b8da5ae7e1ba27e1cc2bca85cb272cf2fb",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "quant-ph",
    "submitted_at": "2005-01-06T11:31:31Z",
    "title_canon_sha256": "d6673c8d6a33ee9dcf4c5cb9add9a0fcca4f8656e02aa07fa093f54114db5c0d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "quant-ph/0501025",
    "kind": "arxiv",
    "version": 1
  }
}