Pith Number

pith:LEX2ZIRF

pith:2025:LEX2ZIRFQ7J3XU55DXKQBYDJ5Y

not attested not anchored not stored refs pending

Quantum information engines: Bounds on performance metrics by measurement time

Abraham Nitzan, Henning Kirchberg

arxiv:2505.00686 v1 · 2025-05-01 · 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{LEX2ZIRFQ7J3XU55DXKQBYDJ5Y}

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	2026-07-05T10:57:24.051397Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

592faca22587d3bbd3bd1dd500e069ee01a721c86db525dd28a6111887128c67

Aliases

arxiv: 2505.00686 · arxiv_version: 2505.00686v1 · doi: 10.48550/arxiv.2505.00686 · pith_short_12: LEX2ZIRFQ7J3 · pith_short_16: LEX2ZIRFQ7J3XU55 · pith_short_8: LEX2ZIRF

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/LEX2ZIRFQ7J3XU55DXKQBYDJ5Y \
  | 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: 592faca22587d3bbd3bd1dd500e069ee01a721c86db525dd28a6111887128c67

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e570cd4d46f7e9ce172fd39830564e47d902487f19de697270fab4892b149c6b",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2025-05-01T17:48:00Z",
    "title_canon_sha256": "44a4eb8329719313aa1413d51aebf8ae332c817c4edb3c821e8bc76da4709e00"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2505.00686",
    "kind": "arxiv",
    "version": 1
  }
}