Pith Number

pith:QVDUIGFI

pith:2015:QVDUIGFILOAKK2WYXZZPJQH7MW

not attested not anchored not stored refs pending

Catalog of Visually Classified Galaxies in the Local ($z\sim0.01$) Universe

D. K. Ha, H. B. Ann, Mira Seo

arxiv:1502.03545 v2 · 2015-02-12 · 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{QVDUIGFILOAKK2WYXZZPJQH7MW}

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	2026-05-18T01:41:03.668403Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

85474418a85b80a56ad8be72f4c0ff659732e589b373e59d81c41d3bdf2d6568

Aliases

arxiv: 1502.03545 · arxiv_version: 1502.03545v2 · doi: 10.48550/arxiv.1502.03545 · pith_short_12: QVDUIGFILOAK · pith_short_16: QVDUIGFILOAKK2WY · pith_short_8: QVDUIGFI

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/QVDUIGFILOAKK2WYXZZPJQH7MW \
  | 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: 85474418a85b80a56ad8be72f4c0ff659732e589b373e59d81c41d3bdf2d6568

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8dbbce18893c5aeeffb22eb1570bc8ce50519699328ddf8759159b1d69b717b5",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2015-02-12T05:39:51Z",
    "title_canon_sha256": "3f40f6dfb21eba91eff25b0860d395049967b0826320993f0d414813329bba80"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1502.03545",
    "kind": "arxiv",
    "version": 2
  }
}