Pith Number

pith:327A4BCE

pith:2005:327A4BCEQ2U27OC3G3WRCXAYYB

not attested not anchored not stored refs pending

Practical Decoy State for Quantum Key Distribution

B. Qi, H.-K. Lo (Center for Quantum Information & Quantum Control, University of Toronto), X. Ma, Y. Zhao

arxiv:quant-ph/0503005 v5 · 2005-03-01 · 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{327A4BCEQ2U27OC3G3WRCXAYYB}

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	2026-07-04T16:57:30.623874Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

debe0e044486a9afb85b36ed115c18c0561b6dcb10b67a6568dba1e3e6b488e2

Aliases

arxiv: quant-ph/0503005 · arxiv_version: quant-ph/0503005v5 · doi: 10.48550/arxiv.quant-ph/0503005 · pith_short_12: 327A4BCEQ2U2 · pith_short_16: 327A4BCEQ2U27OC3 · pith_short_8: 327A4BCE

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/327A4BCEQ2U27OC3G3WRCXAYYB \
  | 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: debe0e044486a9afb85b36ed115c18c0561b6dcb10b67a6568dba1e3e6b488e2

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7a72c8c9f82e1dd4f9726e4d71588981092f1e08924d6d34457a7e5c5ee322c3",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "quant-ph",
    "submitted_at": "2005-03-01T20:30:53Z",
    "title_canon_sha256": "56bb681efe0c78e3fceef56c1771a48a9c1b4928040c1188046956f37ba37332"
  },
  "schema_version": "1.0",
  "source": {
    "id": "quant-ph/0503005",
    "kind": "arxiv",
    "version": 5
  }
}