Pith Number

pith:QKAU6XWZ

pith:2021:QKAU6XWZ7BBC3TSAJVNBPYY42H

not attested not anchored not stored refs pending

Identification of BASS DR3 Sources as Stars, Galaxies and Quasars by XGBoost

Boliang He, Changhua Li, Chenzhou Cui, Dongwei Fan, Hanxi Yang, Jun Han, Linying Mi, Shanshan Li, Sisi Yang, Xue-Bing Wu, Yanxia Zhang, Yihan Tao, Yongheng Zhao, Yunfei Xu

arxiv:2106.05563 v1 · 2021-06-10 · astro-ph.GA · astro-ph.IM

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{QKAU6XWZ7BBC3TSAJVNBPYY42H}

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	2026-07-05T02:59:22.876199Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

82814f5ed9f8422dce404d5a17e31cd1c66916c58438339d24a8b18d06bd2101

Aliases

arxiv: 2106.05563 · arxiv_version: 2106.05563v1 · doi: 10.48550/arxiv.2106.05563 · pith_short_12: QKAU6XWZ7BBC · pith_short_16: QKAU6XWZ7BBC3TSA · pith_short_8: QKAU6XWZ

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/QKAU6XWZ7BBC3TSAJVNBPYY42H \
  | 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: 82814f5ed9f8422dce404d5a17e31cd1c66916c58438339d24a8b18d06bd2101

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9c28e73b72b4bfbb4ce9007c2c0c30b601ca433eeb6d77a34026301114e9fe4b",
    "cross_cats_sorted": [
      "astro-ph.IM"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2021-06-10T07:42:53Z",
    "title_canon_sha256": "e5069bb1781b3bcb240303aad92cde8aa6bf397dce56ee3e1fddf6c018c9eb85"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2106.05563",
    "kind": "arxiv",
    "version": 1
  }
}