Pith Number

pith:QXJRXDYU

pith:2025:QXJRXDYUX6CXSML4VAEP4VJG62

not attested not anchored not stored refs pending

Using Active Learning to Improve Quasar Identification for the DESI Spectra Processing Pipeline

A. Bault, A. Brodzeller, A. de la Macorra, A. D. Myers, A. Font-Ribera, A. Kremin, A. Lambert, A. Meisner, B. A. Weaver, C. Saulder, David Kirkby, D. Bianchi, D. Brooks, D. M. Alexander, D. Schlegel, D. Sprayberry, Dylan Green, E. Armengaud, E. Gazta\~naga, E. Sanchez, F. Prada, F. Sinigaglia, G. Gutierrez, G. Rossi, G. Tarl\'e, H. Seo, H. Zou, I. P\'erez-R\`afols, J. Aguilar, J. E. Forero-Romero, J. Moustakas, J. Yu, L. Le Guillou, M. E. Levi, M. Ishak, M. Landriau, M. Manera, M. Schubnell, N. Palanque-Delabrouille, P. Doel, R. de Belsunce, R. Kehoe, R. Miquel, R. Zhou, S. Ahlen, S. Bailey, S. Ferraro, S. Gontcho A Gontcho, S. Juneau, S. Youles, T. Claybaugh, T. Kisner, T. Tan, V. A. Fawcett

arxiv:2505.01596 v2 · 2025-05-02 · astro-ph.IM · astro-ph.CO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{QXJRXDYUX6CXSML4VAEP4VJG62}

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.

Cited by

2 papers in Pith

DESI DR2 Results I: Baryon Acoustic Oscillations from the Lyman Alpha Forest

DESI DR2 Results II: Measurements of Baryon Acoustic Oscillations and Cosmological Constraints

Receipt and verification

First computed	2026-07-05T12:04:34.181177Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

85d31b8f14bf8579317ca808fe5526f6be28aa637fe86a858cc6b0d775bd8a4d

Aliases

arxiv: 2505.01596 · arxiv_version: 2505.01596v2 · doi: 10.48550/arxiv.2505.01596 · pith_short_12: QXJRXDYUX6CX · pith_short_16: QXJRXDYUX6CXSML4 · pith_short_8: QXJRXDYU

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/QXJRXDYUX6CXSML4VAEP4VJG62 \
  | 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: 85d31b8f14bf8579317ca808fe5526f6be28aa637fe86a858cc6b0d775bd8a4d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "22ed365a0885d642811641183cc154833ae85d9266a83c27b9fdbebc09ad1d57",
    "cross_cats_sorted": [
      "astro-ph.CO"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "astro-ph.IM",
    "submitted_at": "2025-05-02T21:40:05Z",
    "title_canon_sha256": "e619f7563ca96128cf75d389d949d2a1a34629fede0d5b386e45ca8b3d40ed05"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2505.01596",
    "kind": "arxiv",
    "version": 2
  }
}