Pith Number

pith:V47TWRNP

pith:2021:V47TWRNPCWH5N2QYRSAGV4YPMW

not attested not anchored not stored refs pending

Photometric Redshift Estimation of BASS DR3 Quasars by Machine Learning

Boliang He, Changhua Li, Chenzhou Cui, Dongwei Fan, Jing-Yi Zhang, Jun Han, Shanshan Li, Xue-Bing Wu, Yanxia Zhang, Yihan Tao, Yongheng Zhao, Yunfei Xu

arxiv:2110.14951 v1 · 2021-10-28 · 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{V47TWRNPCWH5N2QYRSAGV4YPMW}

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	2026-07-05T03:32:25.785866Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

af3f3b45af158fd6ea188c806af30f659c64f607d1ddb5aaf09e91e86a4fafa1

Aliases

arxiv: 2110.14951 · arxiv_version: 2110.14951v1 · doi: 10.48550/arxiv.2110.14951 · pith_short_12: V47TWRNPCWH5 · pith_short_16: V47TWRNPCWH5N2QY · pith_short_8: V47TWRNP

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/V47TWRNPCWH5N2QYRSAGV4YPMW \
  | 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: af3f3b45af158fd6ea188c806af30f659c64f607d1ddb5aaf09e91e86a4fafa1

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3ba28552d4b21fdbb94bed142f5300a47b8564b30839c3246de9633934f85061",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.IM",
    "submitted_at": "2021-10-28T08:40:10Z",
    "title_canon_sha256": "96559886f35e813b4ba95ba2842ef3a88e5b5c97d06023d50abc16686fc9378e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2110.14951",
    "kind": "arxiv",
    "version": 1
  }
}