Pith Number

pith:6ZALB2EU

pith:2021:6ZALB2EU5ZLUZ4TP5HN6QR7WV4

not attested not anchored not stored refs pending

Simulations of ionospheric refraction on radio interferometric data

C. H. Jordan, C. Lynch, C. M. Trott, J. Kariuki Chege, J. L. B. Line

arxiv:2105.04215 v1 · 2021-05-10 · astro-ph.IM · astro-ph.GA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{6ZALB2EU5ZLUZ4TP5HN6QR7WV4}

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	2026-07-05T02:53:57.459592Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f640b0e894ee574cf26fe9dbe847f6af0a9ebcb248c3530ca022c02b1cd7a92f

Aliases

arxiv: 2105.04215 · arxiv_version: 2105.04215v1 · doi: 10.48550/arxiv.2105.04215 · pith_short_12: 6ZALB2EU5ZLU · pith_short_16: 6ZALB2EU5ZLUZ4TP · pith_short_8: 6ZALB2EU

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/6ZALB2EU5ZLUZ4TP5HN6QR7WV4 \
  | 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: f640b0e894ee574cf26fe9dbe847f6af0a9ebcb248c3530ca022c02b1cd7a92f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "84b0e705efc5a7ca681840c6ebd96c6b185175825e6a6ea81d38fc07a110c55a",
    "cross_cats_sorted": [
      "astro-ph.GA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.IM",
    "submitted_at": "2021-05-10T09:16:38Z",
    "title_canon_sha256": "8cf48fc2b8620a79df2cdf469beca774e7beacfa5e7e10af67d9dce2b9bd8951"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2105.04215",
    "kind": "arxiv",
    "version": 1
  }
}