Pith Number

pith:JP7VRIEU

pith:2009:JP7VRIEUEEUI5DKF5JYSSVKZE4

not attested not anchored not stored refs pending

An optical and X-ray study of the fossil group RX J1340.6+4018

Claudia L. Mendes de Oliveira, Eduardo S. Cypriano, Laerte Sodr\'e Jr, Renato A. Dupke

arxiv:0905.1934 v1 · 2009-05-12 · 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{JP7VRIEUEEUI5DKF5JYSSVKZE4}

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	2026-05-18T02:13:39.834612Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

4bff58a09421288e8d45ea71295559270faf8b91fb1bdc70597a34ffd4b2b8c1

Aliases

arxiv: 0905.1934 · arxiv_version: 0905.1934v1 · doi: 10.48550/arxiv.0905.1934 · pith_short_12: JP7VRIEUEEUI · pith_short_16: JP7VRIEUEEUI5DKF · pith_short_8: JP7VRIEU

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/JP7VRIEUEEUI5DKF5JYSSVKZE4 \
  | 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: 4bff58a09421288e8d45ea71295559270faf8b91fb1bdc70597a34ffd4b2b8c1

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3399b81a0091304557296760b2c9e275ffe04ba6614f1a0b5089179fd53302d1",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2009-05-12T19:09:27Z",
    "title_canon_sha256": "9f4efb2423eca0387c757d9a24321f5561a8f5c476cf7c12ccb8302258b1e2be"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0905.1934",
    "kind": "arxiv",
    "version": 1
  }
}