Pith Number

pith:W4UXSA4Z

pith:2012:W4UXSA4ZTSTKXDY7NNSFG27EUE

not attested not anchored not stored refs pending

Improved CLEAN reconstructions for rotation measure synthesis with maximum likelihood estimation

A. Crai, M. R. Bell, N. Oppermann, T. A. En{\ss}lin

arxiv:1211.5105 v1 · 2012-11-21 · 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{W4UXSA4ZTSTKXDY7NNSFG27EUE}

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	2026-05-18T01:53:01.846119Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b7297903999ca6ab8f1f6b64536be4a13ab694775dbedb47ec43c8dae059265a

Aliases

arxiv: 1211.5105 · arxiv_version: 1211.5105v1 · doi: 10.48550/arxiv.1211.5105 · pith_short_12: W4UXSA4ZTSTK · pith_short_16: W4UXSA4ZTSTKXDY7 · pith_short_8: W4UXSA4Z

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/W4UXSA4ZTSTKXDY7NNSFG27EUE \
  | 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: b7297903999ca6ab8f1f6b64536be4a13ab694775dbedb47ec43c8dae059265a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "97409b450d7f57e1b396e07391d5228ed8e8c283c1c4581a1b877dd45608f354",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.IM",
    "submitted_at": "2012-11-21T18:12:43Z",
    "title_canon_sha256": "ba0ddb856a3f5d67b34e0f43d72c8b3009f7fd18487ec749a4922c3290029c14"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1211.5105",
    "kind": "arxiv",
    "version": 1
  }
}