Pith Number

pith:2Y5OEUZA

pith:2014:2Y5OEUZADZZRSTNIXKP2U23ASQ

not attested not anchored not stored refs pending

SPARCO : a semi-parametric approach for image reconstruction of chromatic objects

B. Lazareff, E. Thi\'ebaut, F. Baron, F. Malbet, F. Soulez, J.-B. Le Bouquin, J. D. Monnier, J. Kluska, J.-P. Berger

arxiv:1403.3343 v1 · 2014-03-13 · astro-ph.IM · astro-ph.SR

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{2Y5OEUZADZZRSTNIXKP2U23ASQ}

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	2026-05-18T02:54:20.825749Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d63ae253201e73194da8ba9faa6b609435b4a367c452579ea9221b8fe5284360

Aliases

arxiv: 1403.3343 · arxiv_version: 1403.3343v1 · doi: 10.48550/arxiv.1403.3343 · pith_short_12: 2Y5OEUZADZZR · pith_short_16: 2Y5OEUZADZZRSTNI · pith_short_8: 2Y5OEUZA

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/2Y5OEUZADZZRSTNIXKP2U23ASQ \
  | 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: d63ae253201e73194da8ba9faa6b609435b4a367c452579ea9221b8fe5284360

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0930df756e2d88dc9ac288493681e4ee7772a26b9f7d402e31f563a296e090b2",
    "cross_cats_sorted": [
      "astro-ph.SR"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.IM",
    "submitted_at": "2014-03-13T17:56:47Z",
    "title_canon_sha256": "c28481f462088bd74a9e418403808ada005fd353e4a8d42c49c4df52de470d9e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1403.3343",
    "kind": "arxiv",
    "version": 1
  }
}