Pith Number

pith:PCNFYHGY

pith:2016:PCNFYHGYXBW56EK6QAR5DDBMPG

not attested not anchored not stored refs pending

On the Classification of UGC1382 as a Giant Low Surface Brightness Galaxy

Alex Hagen, Barry F. Madore, James D. Neill, Jeffrey A. Rich, Kristina Nyland, Lea M. Z. Hagen, Lisa M. Young, Marie Treyer, Mark Seibert

arxiv:1607.02147 v1 · 2016-07-07 · 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{PCNFYHGYXBW56EK6QAR5DDBMPG}

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	2026-05-18T01:08:38.306222Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

789a5c1cd8b86ddf115e8023d18c2c79a9f71572bf4adbe736e8a7a4b30d6475

Aliases

arxiv: 1607.02147 · arxiv_version: 1607.02147v1 · doi: 10.48550/arxiv.1607.02147 · pith_short_12: PCNFYHGYXBW5 · pith_short_16: PCNFYHGYXBW56EK6 · pith_short_8: PCNFYHGY

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/PCNFYHGYXBW56EK6QAR5DDBMPG \
  | 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: 789a5c1cd8b86ddf115e8023d18c2c79a9f71572bf4adbe736e8a7a4b30d6475

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7f7158ad5bebfbf67e264a199be6d328b83ff22ce959c75020d49c3c3553105d",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2016-07-07T20:00:05Z",
    "title_canon_sha256": "bbf887a892c36ebe7f69f0f2e26756031f003f8064759d6e270133f0bfbca60e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1607.02147",
    "kind": "arxiv",
    "version": 1
  }
}