Pith Number

pith:QYRYNLF5

pith:2024:QYRYNLF55HABVYNV7ZZP6T7NUB

not attested not anchored not stored refs pending

Photometric Selection of type 1 Quasars in the XMM-LSS Field with Machine Learning and the Disk-Corona Connection

Bin Luo, Jian Huang, Qingling Ni, W. N. Brandt, Ying Chen, Yongquan Xue, Zijian Zhang

arxiv:2412.06923 v1 · 2024-12-09 · 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{QYRYNLF55HABVYNV7ZZP6T7NUB}

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	2026-07-05T09:47:00.264821Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

862386acbde9c01ae1b5fe72ff4feda079f731dfe7e01a25ae47ca37f77c084c

Aliases

arxiv: 2412.06923 · arxiv_version: 2412.06923v1 · doi: 10.48550/arxiv.2412.06923 · pith_short_12: QYRYNLF55HAB · pith_short_16: QYRYNLF55HABVYNV · pith_short_8: QYRYNLF5

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/QYRYNLF55HABVYNV7ZZP6T7NUB \
  | 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: 862386acbde9c01ae1b5fe72ff4feda079f731dfe7e01a25ae47ca37f77c084c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ff917259399c33c62582b0b0242c8b6ea2fc7cfeab807b408a817d87c570b67c",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2024-12-09T19:09:55Z",
    "title_canon_sha256": "1e5644556cedca461e025c569295c4e82c21dd457fe09a4ed2bdc62fae9d86c9"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2412.06923",
    "kind": "arxiv",
    "version": 1
  }
}