Pith Number

pith:4DHCGPYJ

pith:2015:4DHCGPYJYDRLZGLW4HUI7DTKOL

not attested not anchored not stored refs pending

Capability of Quasar Selection by Combining the SCUSS and SDSS Observations

Cheng Li, Hu Zou, Jiali Wang, Jundan Nie, Jun Ma, Linhua Jiang, Michael Lesser, Shiyin Shen, Shu Wang, Tianmeng Zhang, Xiaohui Fan, Xue-Bing Wu, Xu Zhou, Yipeng Jing, Zhaoji Jiang, Zhenyu Wu, Zhimin Zhou, Zhou Fan

arxiv:1501.03352 v1 · 2015-01-14 · 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{4DHCGPYJYDRLZGLW4HUI7DTKOL}

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	2026-05-18T01:41:11.041732Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e0ce233f09c0e2bc9976e1e88f8e6a72ca554a3ab91638b3417f20d52262bbfb

Aliases

arxiv: 1501.03352 · arxiv_version: 1501.03352v1 · doi: 10.48550/arxiv.1501.03352 · pith_short_12: 4DHCGPYJYDRL · pith_short_16: 4DHCGPYJYDRLZGLW · pith_short_8: 4DHCGPYJ

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/4DHCGPYJYDRLZGLW4HUI7DTKOL \
  | 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: e0ce233f09c0e2bc9976e1e88f8e6a72ca554a3ab91638b3417f20d52262bbfb

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f38162e489e544be9c8fe4295d99fc69e59d70216f0ebde73356ed9981a00f61",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2015-01-14T14:03:46Z",
    "title_canon_sha256": "8403f0b955bdcddbd656664d92514bf0ce2ea7ad146be6b6d23e8c5f801bc7a8"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1501.03352",
    "kind": "arxiv",
    "version": 1
  }
}