Pith Number

pith:2RTCA4SG

pith:2013:2RTCA4SGCCOX3J4CO7QWB43IT6

not attested not anchored not stored refs pending

Sub-parsec radio cores in nearby Seyfert galaxies

Francesca Panessa, Marcello Giroletti

arxiv:1304.0794 v1 · 2013-04-02 · astro-ph.HE · 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{2RTCA4SGCCOX3J4CO7QWB43IT6}

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	2026-05-18T01:50:49.800954Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d466207246109d7da78277e160f3689f86b024ce2ce9f4cc9d9b4deb6255e9dd

Aliases

arxiv: 1304.0794 · arxiv_version: 1304.0794v1 · doi: 10.48550/arxiv.1304.0794 · pith_short_12: 2RTCA4SGCCOX · pith_short_16: 2RTCA4SGCCOX3J4C · pith_short_8: 2RTCA4SG

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/2RTCA4SGCCOX3J4CO7QWB43IT6 \
  | 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: d466207246109d7da78277e160f3689f86b024ce2ce9f4cc9d9b4deb6255e9dd

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "64c309d564b25ccb111c70e5880a8f5ff90d6a601baeda604c1bf694e1708e38",
    "cross_cats_sorted": [
      "astro-ph.CO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2013-04-02T20:38:01Z",
    "title_canon_sha256": "0f037ef0f0b6a09d8204b06bdb89038790db8240568d14c7b2138972e3b614a6"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1304.0794",
    "kind": "arxiv",
    "version": 1
  }
}