Pith Number

pith:4KHVQVTG

pith:2010:4KHVQVTGWOIVXHU3I3DOISO5PJ

not attested not anchored not stored refs pending

LOFAR and HDF5: Toward a New Radio Data Standard

Adriaan Renting, Anastasia Alexov, Jean-Mathias Griessmeier, Kenneth Anderson, Lars Baehren, Michael Wise

arxiv:1012.2266 v1 · 2010-12-10 · 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{4KHVQVTGWOIVXHU3I3DOISO5PJ}

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	2026-05-18T04:33:38.152074Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e28f585666b3915b9e9b46c6e449dd7a43749eed6e56f4d1a1dd50d4742630fe

Aliases

arxiv: 1012.2266 · arxiv_version: 1012.2266v1 · doi: 10.48550/arxiv.1012.2266 · pith_short_12: 4KHVQVTGWOIV · pith_short_16: 4KHVQVTGWOIVXHU3 · pith_short_8: 4KHVQVTG

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/4KHVQVTGWOIVXHU3I3DOISO5PJ \
  | 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: e28f585666b3915b9e9b46c6e449dd7a43749eed6e56f4d1a1dd50d4742630fe

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2f1fe9bf5398aacee271cdfe40be7cd5390fdae6f200f378902c3f482311f3fa",
    "cross_cats_sorted": [
      "astro-ph.CO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.IM",
    "submitted_at": "2010-12-10T13:49:07Z",
    "title_canon_sha256": "fa75776e1776692176a7caaf7daf9aaee6d642b4448ae0945d38a090b7f79a8c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1012.2266",
    "kind": "arxiv",
    "version": 1
  }
}