Pith Number

pith:UBSQLHF2

pith:2012:UBSQLHF2VXXNHTRUBXPWHGO2EQ

not attested not anchored not stored refs pending

What makes a galaxy radio-loud?

D. M. Neri-Larios, H. Andernach, I. Plauchu-Frayn, J. M. Islas-Islas, J. P. Torres-Papaqui, M. del C. Rojas-Granados, R. A. Ortega-Minakata, R. Coziol

arxiv:1201.4401 v1 · 2012-01-20 · astro-ph.CO

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{UBSQLHF2VXXNHTRUBXPWHGO2EQ}

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	2026-05-18T01:58:44.113352Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a065059cbaadeed3ce340ddf6399da2400af03a439d55d8898fc5d6ab24aaabb

Aliases

arxiv: 1201.4401 · arxiv_version: 1201.4401v1 · doi: 10.48550/arxiv.1201.4401 · pith_short_12: UBSQLHF2VXXN · pith_short_16: UBSQLHF2VXXNHTRU · pith_short_8: UBSQLHF2

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/UBSQLHF2VXXNHTRUBXPWHGO2EQ \
  | 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: a065059cbaadeed3ce340ddf6399da2400af03a439d55d8898fc5d6ab24aaabb

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "176db0fd057ea683ea1e7c9bf4fa7ca0b7f092ad0638e69d0d5a64f48208360a",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2012-01-20T21:32:15Z",
    "title_canon_sha256": "9688e5c30fc5aaf759dacdf51f55eb346ca3ff6ba2fae2d1b28b071f966efe28"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1201.4401",
    "kind": "arxiv",
    "version": 1
  }
}