Pith Number

pith:L7EX2CJ7

pith:2009:L7EX2CJ7TC4DDBAOXO3PMF73EN

not attested not anchored not stored refs pending

Comparative analysis of the diffuse radio emission in the galaxy clusters A1835, A2029, and Ophiuchus

E. Carretti, F. Govoni, G.B. Taylor, G. Giovannini, L. Feretti, M. Markevitch, M. Murgia

arxiv:0901.1943 v2 · 2009-01-14 · 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{L7EX2CJ7TC4DDBAOXO3PMF73EN}

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	2026-05-18T02:15:02.395854Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

5fc97d093f98b831840ebbb6f617fb2373d6218e1c9703b05f925d2464854523

Aliases

arxiv: 0901.1943 · arxiv_version: 0901.1943v2 · doi: 10.48550/arxiv.0901.1943 · pith_short_12: L7EX2CJ7TC4D · pith_short_16: L7EX2CJ7TC4DDBAO · pith_short_8: L7EX2CJ7

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/L7EX2CJ7TC4DDBAOXO3PMF73EN \
  | 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: 5fc97d093f98b831840ebbb6f617fb2373d6218e1c9703b05f925d2464854523

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8750d425ff1b98fd621a70fc67c36d954d0f517ba417d145f162d09c23f4f94e",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2009-01-14T07:37:34Z",
    "title_canon_sha256": "2749682070a12e7829af8940597cfafc31623e54b5582ef89e4fb913eeed86f7"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0901.1943",
    "kind": "arxiv",
    "version": 2
  }
}