Pith Number

pith:ZT2OJOJJ

pith:2019:ZT2OJOJJ4YQF3EGUHIQXP34WCT

not attested not anchored not stored refs pending

$w$-stacking $w$-projection hybrid algorithm for wide-field interferometric imaging: implementation details and improvements

J. D. McEwen, L. Pratley, M. Johnston-Hollitt

arxiv:1903.06555 v1 · 2019-03-13 · 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{ZT2OJOJJ4YQF3EGUHIQXP34WCT}

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	2026-07-05T01:42:31.015048Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ccf4e4b929e6205d90d43a2177ef9614fc97ae0489bdac7d0e43483b32834b6f

Aliases

arxiv: 1903.06555 · arxiv_version: 1903.06555v1 · doi: 10.48550/arxiv.1903.06555 · pith_short_12: ZT2OJOJJ4YQF · pith_short_16: ZT2OJOJJ4YQF3EGU · pith_short_8: ZT2OJOJJ

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/ZT2OJOJJ4YQF3EGUHIQXP34WCT \
  | 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: ccf4e4b929e6205d90d43a2177ef9614fc97ae0489bdac7d0e43483b32834b6f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "eed94b6634f823357afb27335a2ee85ec180204f269a3e740ebc719d638181ff",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.IM",
    "submitted_at": "2019-03-13T18:00:14Z",
    "title_canon_sha256": "0556b618c3c2d1829aece6966b4ee8421d857fab5151254e272acd62187f59ca"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1903.06555",
    "kind": "arxiv",
    "version": 1
  }
}