Pith Number

pith:4FEAI4EY

pith:2022:4FEAI4EYZ5GQRWRM2ARRAUXC6M

not attested not anchored not stored refs pending

Automatic detection of low surface brightness galaxies from SDSS images

Hong Wu, Jia Li, Jingchang Pan, Meng Liu, Wei Du, Xiaoming Kong, Yongguang Xing, Yude Bu, Zengxu Liang, Zhenping Yi

arxiv:2203.16813 v1 · 2022-03-31 · 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{4FEAI4EYZ5GQRWRM2ARRAUXC6M}

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	2026-07-05T04:27:55.210578Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e148047098cf4d08da2cd0231052e2f32fd168a163b83f2efc7dd46be28b2f5e

Aliases

arxiv: 2203.16813 · arxiv_version: 2203.16813v1 · doi: 10.48550/arxiv.2203.16813 · pith_short_12: 4FEAI4EYZ5GQ · pith_short_16: 4FEAI4EYZ5GQRWRM · pith_short_8: 4FEAI4EY

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/4FEAI4EYZ5GQRWRM2ARRAUXC6M \
  | 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: e148047098cf4d08da2cd0231052e2f32fd168a163b83f2efc7dd46be28b2f5e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6a273889da12f256a42e368840c0ce59e7706ce61346de8f832708b4faba78a5",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.IM",
    "submitted_at": "2022-03-31T05:46:16Z",
    "title_canon_sha256": "581f124de90767a4fade931c4de255c1f8c9d8e3436763ef83609379aceda9bf"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2203.16813",
    "kind": "arxiv",
    "version": 1
  }
}