Pith Number

pith:LXJLE2GE

pith:2025:LXJLE2GERNVGSO7BBCKGQ62VDH

not attested not anchored not stored refs pending

Hadamard Random Forest: Reconstructing real-valued quantum states with exponential reduction in measurement settings

Bryan Gard, Hang Ren, Melody Lee, Nicolas Renaud, Spencer H. Bryngelson, Zhixin Song

arxiv:2505.06455 v2 · 2025-05-09 · 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{LXJLE2GERNVGSO7BBCKGQ62VDH}

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	2026-07-05T12:05:43.042071Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

5dd2b268c48b6a693be10894687b5519e848868b4f755f19963dfd2870ad7b10

Aliases

arxiv: 2505.06455 · arxiv_version: 2505.06455v2 · doi: 10.48550/arxiv.2505.06455 · pith_short_12: LXJLE2GERNVG · pith_short_16: LXJLE2GERNVGSO7B · pith_short_8: LXJLE2GE

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/LXJLE2GERNVGSO7BBCKGQ62VDH \
  | 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: 5dd2b268c48b6a693be10894687b5519e848868b4f755f19963dfd2870ad7b10

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f41a43caae014f89bd33bf96354cc48c59b4a4f64b03d572e0a46754a332029a",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2025-05-09T22:12:54Z",
    "title_canon_sha256": "36573c7a7fba7e4eb14dbba81e97ddca2615ca410d9309ae5fe940054fbf4257"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2505.06455",
    "kind": "arxiv",
    "version": 2
  }
}