Pith Number

pith:F3CPJF3C

pith:2003:F3CPJF3C4LCW6OZE32KMRNRAXA

not attested not anchored not stored refs pending

Inverse Compton X-rays from the radio galaxy 3C 219

A. Comastri, D. Dallacasa, G. Brunetti, G. Setti, M. Bondi, M. Pedani

arxiv:astro-ph/0302509 v1 · 2003-02-25 · astro-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{F3CPJF3C4LCW6OZE32KMRNRAXA}

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	2026-05-18T01:07:33.783651Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2ec4f49762e2c56f3b24de94c8b620b802e803b9927ac60ce5136ae33f327a65

Aliases

arxiv: astro-ph/0302509 · arxiv_version: astro-ph/0302509v1 · doi: 10.48550/arxiv.astro-ph/0302509 · pith_short_12: F3CPJF3C4LCW · pith_short_16: F3CPJF3C4LCW6OZE · pith_short_8: F3CPJF3C

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/F3CPJF3C4LCW6OZE32KMRNRAXA \
  | 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: 2ec4f49762e2c56f3b24de94c8b620b802e803b9927ac60ce5136ae33f327a65

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "365bcc75b61149645b5bf76ee36ce4fc19ce31fc48ff22e927d40432fd520ee8",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2003-02-25T10:42:33Z",
    "title_canon_sha256": "bbc358734a646b437aa6e61fd447b9e1949368c91ad5aa4dc5ae31ed9b1db6c3"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0302509",
    "kind": "arxiv",
    "version": 1
  }
}