Pith Number

pith:ODEUWD7J

pith:2011:ODEUWD7JKSB2WTFPBIPLCRNK3O

not attested not anchored not stored refs pending

LOFAR: opening a new window on low frequency radio astronomy

A. Alexov, E. Orru`, F. De Gasperin, G. Heald, J. Hessels, J. McKean, M. Wise, R. Morganti, R. Pizzo, R. van Weeren (for the LOFAR Collaboration), V. Kondratiev

arxiv:1112.5094 v1 · 2011-12-21 · astro-ph.IM · 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{ODEUWD7JKSB2WTFPBIPLCRNK3O}

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	2026-07-04T23:53:39.831809Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

70c94b0fe95483ab4caf0a1eb145aadbae1c96789c507fe7db5ca0e6d87947fb

Aliases

arxiv: 1112.5094 · arxiv_version: 1112.5094v1 · doi: 10.48550/arxiv.1112.5094 · pith_short_12: ODEUWD7JKSB2 · pith_short_16: ODEUWD7JKSB2WTFP · pith_short_8: ODEUWD7J

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/ODEUWD7JKSB2WTFPBIPLCRNK3O \
  | 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: 70c94b0fe95483ab4caf0a1eb145aadbae1c96789c507fe7db5ca0e6d87947fb

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "bd37ee8b8f0db3cd4ceaf153e34feaa0b9b8ac855c8d80719e1c5c91bbfd0b42",
    "cross_cats_sorted": [
      "astro-ph.CO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.IM",
    "submitted_at": "2011-12-21T17:00:58Z",
    "title_canon_sha256": "3dcc9233e91720a6ee22b642f6f732dcbce454a77071ca59131986f4ee85674c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1112.5094",
    "kind": "arxiv",
    "version": 1
  }
}