Pith Number

pith:55KJWOPP

pith:2022:55KJWOPPBDFLT5MUTKWJ7DVYML

not attested not anchored not stored refs pending

The probabilistic random forest applied to the QUBRICS survey: improving the selection of high-redshift quasars with synthetic data

Andrea Grazian, Angela Bongiorno, Fabio Fontanot, Francesco Guarneri, Giorgio Calderone, Guido Cupani, Ivano Saccheo, Konstantina Boutsia, Luciano Nicastro, Matteo Porru, Michael T. Murphy, Stefano Cristiani, Valentina D'Odorico

arxiv:2209.07257 v2 · 2022-09-15 · astro-ph.IM · astro-ph.GA

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{55KJWOPPBDFLT5MUTKWJ7DVYML}

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	2026-07-05T05:05:39.401705Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ef549b39ef08cab9f5949aac9f8eb862ea069d65d98fad380bea0f732ed8c4b3

Aliases

arxiv: 2209.07257 · arxiv_version: 2209.07257v2 · doi: 10.48550/arxiv.2209.07257 · pith_short_12: 55KJWOPPBDFL · pith_short_16: 55KJWOPPBDFLT5MU · pith_short_8: 55KJWOPP

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/55KJWOPPBDFLT5MUTKWJ7DVYML \
  | 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: ef549b39ef08cab9f5949aac9f8eb862ea069d65d98fad380bea0f732ed8c4b3

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8c34759aee4a843c36f19c00ea4fca64b1e1e3996b58bd258463a3dc067027dd",
    "cross_cats_sorted": [
      "astro-ph.GA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.IM",
    "submitted_at": "2022-09-15T12:47:42Z",
    "title_canon_sha256": "989504f652796cb1d6c4a488c79de68760b050c2cb28cad41efae565ff66f5bc"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2209.07257",
    "kind": "arxiv",
    "version": 2
  }
}