Pith Number

pith:5LOQAUT3

pith:2026:5LOQAUT3JLWDQGQDM54AE5Y4UY

not attested not anchored not stored refs pending

Changing-look Active Galactic Nuclei from SDSS, LAMOST and DESI Survey

Guohai Chen, Hubing Xiao, Junhui Fan, Wenxin Yang, Xuhong Ye, Zhiqiang Chen, Zhiyuan Pei

arxiv:2605.24429 v1 · 2026-05-23 · 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{5LOQAUT3JLWDQGQDM54AE5Y4UY}

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	2026-05-26T01:03:39.328494Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

eadd00527b4aec381a03677802771ca63f15930a8211740b3256b5cf57aa75d8

Aliases

arxiv: 2605.24429 · arxiv_version: 2605.24429v1 · doi: 10.48550/arxiv.2605.24429 · pith_short_12: 5LOQAUT3JLWD · pith_short_16: 5LOQAUT3JLWDQGQD · pith_short_8: 5LOQAUT3

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/5LOQAUT3JLWDQGQDM54AE5Y4UY \
  | 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: eadd00527b4aec381a03677802771ca63f15930a8211740b3256b5cf57aa75d8

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "51c9d8a900983c57f5c00427f9b83b4b05ea74f6da256967ce624b7d05ea6815",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2026-05-23T06:52:38Z",
    "title_canon_sha256": "83da31675be209e5344f4407ecf3e828ac4768cd6d3c0d09e3f8252f5171c243"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2605.24429",
    "kind": "arxiv",
    "version": 1
  }
}