Pith Number

pith:U6PQCGCF

pith:2022:U6PQCGCFVTHGMM2DUZTFI2ZCWV

not attested not anchored not stored refs pending

Half-sibling regression meets exoplanet imaging: PSF modeling and subtraction using a flexible, domain knowledge-driven, causal framework

Bernhard Sch\"olkopf, Markus J. Bonse, Sascha P. Quanz, Timothy D. Gebhard

arxiv:2204.03439 v1 · 2022-04-07 · astro-ph.IM · astro-ph.EP · cs.LG

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{U6PQCGCFVTHGMM2DUZTFI2ZCWV}

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	2026-07-05T05:03:23.752389Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a79f011845acce663343a666546b22b56d1c6e616b4140b03b8b6ab34f9af486

Aliases

arxiv: 2204.03439 · arxiv_version: 2204.03439v1 · doi: 10.48550/arxiv.2204.03439 · pith_short_12: U6PQCGCFVTHG · pith_short_16: U6PQCGCFVTHGMM2D · pith_short_8: U6PQCGCF

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/U6PQCGCFVTHGMM2DUZTFI2ZCWV \
  | 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: a79f011845acce663343a666546b22b56d1c6e616b4140b03b8b6ab34f9af486

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "eb23e9ad7e9763834b0f89f3940bb3dbb740568150705ff7aedcba40cece55fd",
    "cross_cats_sorted": [
      "astro-ph.EP",
      "cs.LG"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.IM",
    "submitted_at": "2022-04-07T13:34:30Z",
    "title_canon_sha256": "5f916dae5092eb7500e683ebb1db1974194372ce9320722048da4257be20da6c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2204.03439",
    "kind": "arxiv",
    "version": 1
  }
}