Pith Number

pith:IGB76Y7V

pith:2021:IGB76Y7V4ZBQL6SVMLFNIZLFPQ

not attested not anchored not stored refs pending

Two years of pulsar observations with the Ultra-Wideband Receiver on the Parkes radio telescope

A. Parthasarathy, C. Sobey, L. S. Oswald, M. Keith, M. Kerr, P. Weltevrede, R. M. Shannon, R. N. Manchester, S. Dai, Simon Johnston

arxiv:2101.07373 v2 · 2021-01-18 · astro-ph.HE · astro-ph.IM

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{IGB76Y7V4ZBQL6SVMLFNIZLFPQ}

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	2026-07-05T02:14:00.066628Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

4183ff63f5e64305fa5562cad465657c09a9910bb8e83768b8223d2375116339

Aliases

arxiv: 2101.07373 · arxiv_version: 2101.07373v2 · doi: 10.48550/arxiv.2101.07373 · pith_short_12: IGB76Y7V4ZBQ · pith_short_16: IGB76Y7V4ZBQL6SV · pith_short_8: IGB76Y7V

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/IGB76Y7V4ZBQL6SVMLFNIZLFPQ \
  | 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: 4183ff63f5e64305fa5562cad465657c09a9910bb8e83768b8223d2375116339

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b6bf9e9c86fd1110e0e07ed46d51a463a60381b0c637933e261dd7d25c206de5",
    "cross_cats_sorted": [
      "astro-ph.IM"
    ],
    "license": "http://creativecommons.org/publicdomain/zero/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2021-01-18T23:27:45Z",
    "title_canon_sha256": "e4c7680fe8f9f046b519b8748747ceeeb474b23bd424241bb5d351f390838a06"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2101.07373",
    "kind": "arxiv",
    "version": 2
  }
}