Pith Number

pith:3JFIDGE5

pith:2002:3JFIDGE5MSFJSDB226LYXJDF6E

not attested not anchored not stored refs pending

Designing Optimal Quantum Detectors Via Semidefinite Programming

Alexandre Megretski, George C. Verghese, Yonina C. Eldar

arxiv:quant-ph/0205178 v1 · 2002-05-28 · 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{3JFIDGE5MSFJSDB226LYXJDF6E}

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	2026-05-18T00:57:44.736915Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

da4a81989d648a990c3ad7978ba465f132f896aef7f766a8e1bcba632eaac0db

Aliases

arxiv: quant-ph/0205178 · arxiv_version: quant-ph/0205178v1 · doi: 10.48550/arxiv.quant-ph/0205178 · pith_short_12: 3JFIDGE5MSFJ · pith_short_16: 3JFIDGE5MSFJSDB2 · pith_short_8: 3JFIDGE5

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/3JFIDGE5MSFJSDB226LYXJDF6E \
  | 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: da4a81989d648a990c3ad7978ba465f132f896aef7f766a8e1bcba632eaac0db

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a61eb54d753d07153ecae7a2f3ece86d27b3b82672d661a79930ff08e864ef48",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "quant-ph",
    "submitted_at": "2002-05-28T22:03:19Z",
    "title_canon_sha256": "25bba7c787fb0e77155887a11048fd91bfee16a917aa3e2818fa6df9ff8093b0"
  },
  "schema_version": "1.0",
  "source": {
    "id": "quant-ph/0205178",
    "kind": "arxiv",
    "version": 1
  }
}