Pith Number

pith:IM2HG2WQ

pith:2015:IM2HG2WQZONMY3N24VLMZUE7D2

not attested not anchored not stored refs pending

Multi-frequency image reconstruction for radio interferometry. A regularized inverse problem approach

Andr\'e Ferrari, Antony Schutz, Chiara Ferrari, David Mary, J\'er\'emy Deguignet, Oleg Smirnov

arxiv:1504.06847 v2 · 2015-04-26 · 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{IM2HG2WQZONMY3N24VLMZUE7D2}

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	2026-05-18T01:19:53.908925Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

4334736ad0cb9acc6dbae556ccd09f1e883405c0adb04882ef7f0bd98bd9ec03

Aliases

arxiv: 1504.06847 · arxiv_version: 1504.06847v2 · doi: 10.48550/arxiv.1504.06847 · pith_short_12: IM2HG2WQZONM · pith_short_16: IM2HG2WQZONMY3N2 · pith_short_8: IM2HG2WQ

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/IM2HG2WQZONMY3N24VLMZUE7D2 \
  | 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: 4334736ad0cb9acc6dbae556ccd09f1e883405c0adb04882ef7f0bd98bd9ec03

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0fc49156e87a9e63173b58ea671d5812cb75322e36d58a0441b669ae23abb8da",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.IM",
    "submitted_at": "2015-04-26T17:12:00Z",
    "title_canon_sha256": "1e62ada609e0a7fc05aa6dddcf64da96837cfd7dadc2149354a74ac56205fd17"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1504.06847",
    "kind": "arxiv",
    "version": 2
  }
}