Pith Number

pith:PG2CIKIR

pith:2004:PG2CIKIRYDDLHSCV7OUPSZC2IB

not attested not anchored not stored refs pending

Heating groups and clusters of galaxies: the role of AGN jets

A. Ferrari, C. Zanni, G. Bodo, G. Murante, P. Rossi, S. Massaglia

arxiv:astro-ph/0408555 v1 · 2004-08-30 · 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{PG2CIKIRYDDLHSCV7OUPSZC2IB}

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	2026-07-04T16:44:35.304203Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

79b4242911c0c6b3c855fba8f9645a405d1964fc57ec10df257c059eebafe6cb

Aliases

arxiv: astro-ph/0408555 · arxiv_version: astro-ph/0408555v1 · doi: 10.48550/arxiv.astro-ph/0408555 · pith_short_12: PG2CIKIRYDDL · pith_short_16: PG2CIKIRYDDLHSCV · pith_short_8: PG2CIKIR

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/PG2CIKIRYDDLHSCV7OUPSZC2IB \
  | 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: 79b4242911c0c6b3c855fba8f9645a405d1964fc57ec10df257c059eebafe6cb

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0dc2e06079e000f9d03810ca485db94f84dfc4aed66db5db7f7cc540f34b3503",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2004-08-30T17:42:54Z",
    "title_canon_sha256": "c35afc6603b2c4a00c8a0a1c5ed831f7cd36133e1da6ab039e44645496ec53b8"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0408555",
    "kind": "arxiv",
    "version": 1
  }
}