Pith Number

pith:2WKHPUP6

pith:2019:2WKHPUP6U6BDHVD4774ENVKOWN

not attested not anchored not stored refs pending

COMP2CAT: hunting compact double radio sources in the local Universe

Alessandro Capetti, Alessandro Paggi, Almudena Prieto, Ana Jimenez-Gallardo, Aneta Siemiginowska, Francesco Massaro, Luisa Ostorero, Ranieri D. Baldi, Romana Grossova, Stefano Viada

arxiv:1905.02212 v1 · 2019-05-06 · astro-ph.HE · 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{2WKHPUP6U6BDHVD4774ENVKOWN}

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	2026-05-17T23:41:08.789344Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d59477d1fea78233d47cfff846d54eb37f078eb15a3a0f183fa7b285a21f2974

Aliases

arxiv: 1905.02212 · arxiv_version: 1905.02212v1 · doi: 10.48550/arxiv.1905.02212 · pith_short_12: 2WKHPUP6U6BD · pith_short_16: 2WKHPUP6U6BDHVD4 · pith_short_8: 2WKHPUP6

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/2WKHPUP6U6BDHVD4774ENVKOWN \
  | 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: d59477d1fea78233d47cfff846d54eb37f078eb15a3a0f183fa7b285a21f2974

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2491af996a2c75d4fc92c10702dbe59e5bf1159c1fb5d8e172ac7cd815377e38",
    "cross_cats_sorted": [
      "astro-ph.GA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2019-05-06T18:00:04Z",
    "title_canon_sha256": "5a3a4955e054d4e88c36ea2e786abb94615353e8f0a0f33cd18acc295fe3de23"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1905.02212",
    "kind": "arxiv",
    "version": 1
  }
}