Pith Number

pith:Y3DIFVSB

pith:2014:Y3DIFVSB3V243BQK4SMMOZRBQB

not attested not anchored not stored refs pending

The BL-Lac gamma-ray blazar PKS 0447-439 as a probable member of a group of galaxies at z=0.343

A.C. Rovero, A. Pichel, C. Donzelli, H. Muriel

arxiv:1412.1831 v1 · 2014-12-04 · astro-ph.GA · astro-ph.HE

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{Y3DIFVSB3V243BQK4SMMOZRBQB}

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	2026-05-18T01:41:23.119665Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c6c682d641dd75cd860ae498c7662180526c66e5c67412f775bf5ba442e8d418

Aliases

arxiv: 1412.1831 · arxiv_version: 1412.1831v1 · doi: 10.48550/arxiv.1412.1831 · pith_short_12: Y3DIFVSB3V24 · pith_short_16: Y3DIFVSB3V243BQK · pith_short_8: Y3DIFVSB

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/Y3DIFVSB3V243BQK4SMMOZRBQB \
  | 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: c6c682d641dd75cd860ae498c7662180526c66e5c67412f775bf5ba442e8d418

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5df9175aaa8ddef61776ec7b32ae053e57fec84f6c3a26a697e725ad0b970892",
    "cross_cats_sorted": [
      "astro-ph.HE"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2014-12-04T21:00:09Z",
    "title_canon_sha256": "74fe921560f1a0e21429562a4da896ad6806728e9f006714843429f6c3ac5a7f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1412.1831",
    "kind": "arxiv",
    "version": 1
  }
}