Pith Number

pith:D4UVDCCW

pith:2009:D4UVDCCWPFYBBDV2SMYVRFIPEM

not attested not anchored not stored refs pending

Unveiling radio halos in galaxy clusters in the LOFAR era

G. Brunetti, H. J. A. Rottgering, M. Bruggen, R. Cassano

arxiv:0910.2025 v1 · 2009-10-11 · 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{D4UVDCCWPFYBBDV2SMYVRFIPEM}

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	2026-05-18T02:11:24.789243Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1f295188567970108eba933158950f2336bb3510a42040cbc082c9c046e69ae3

Aliases

arxiv: 0910.2025 · arxiv_version: 0910.2025v1 · doi: 10.48550/arxiv.0910.2025 · pith_short_12: D4UVDCCWPFYB · pith_short_16: D4UVDCCWPFYBBDV2 · pith_short_8: D4UVDCCW

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/D4UVDCCWPFYBBDV2SMYVRFIPEM \
  | 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: 1f295188567970108eba933158950f2336bb3510a42040cbc082c9c046e69ae3

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a24990e7b1225484fd325a3e9899481afc80aaa6d99d7cc31234efd030932c38",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2009-10-11T17:39:55Z",
    "title_canon_sha256": "a32d01eef007079ba125f479736848c3b5934ea277124218151c81869d82f4c8"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0910.2025",
    "kind": "arxiv",
    "version": 1
  }
}