Pith Number

pith:VSOA2Y4S

pith:2012:VSOA2Y4SEL37XF3KC5YAUQZEBH

not attested not anchored not stored refs pending

Gamma-ray emission from Narrow-Line Seyfert 1 Galaxies and implications on the jets unification

Luigi Foschini

arxiv:1209.4776 v1 · 2012-09-21 · 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{VSOA2Y4SEL37XF3KC5YAUQZEBH}

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	2026-05-18T01:54:20.222056Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ac9c0d639222f7fb976a17700a432409d805895fd6e95a5536fb56f7d41116da

Aliases

arxiv: 1209.4776 · arxiv_version: 1209.4776v1 · doi: 10.48550/arxiv.1209.4776 · pith_short_12: VSOA2Y4SEL37 · pith_short_16: VSOA2Y4SEL37XF3K · pith_short_8: VSOA2Y4S

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/VSOA2Y4SEL37XF3KC5YAUQZEBH \
  | 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: ac9c0d639222f7fb976a17700a432409d805895fd6e95a5536fb56f7d41116da

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "875a0372a5d3351c6f12ba4aefe111e6d908cb561831954cb420f98a36ac62f3",
    "cross_cats_sorted": [
      "astro-ph.GA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2012-09-21T10:35:04Z",
    "title_canon_sha256": "14ca05dedf98a330fc17dab135c2696225a5f09be91cdc72706ae7919349b2ca"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1209.4776",
    "kind": "arxiv",
    "version": 1
  }
}