Pith Number

pith:ZW4GCAUF

pith:2026:ZW4GCAUFA45WRRIOAMKQSU372R

not attested not anchored not stored refs pending

Modeling the Impact of Starspot Inhomogeneity on Spectroscopic Retrievals of Directly-Imaged Planets

Alex R. Howe, Avi M. Mandel, Christopher C. Stark, Natasha Latouf, Veselin Kostov

arxiv:2607.11728 v1 · 2026-07-13 · astro-ph.EP · 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{ZW4GCAUFA45WRRIOAMKQSU372R}

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	2026-07-14T02:22:21.404302Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

cdb8610285073b68c50e031509537fd4585315430a7a9643eabcb32bec56ee0b

Aliases

arxiv: 2607.11728 · arxiv_version: 2607.11728v1 · doi: 10.48550/arxiv.2607.11728 · pith_short_12: ZW4GCAUFA45W · pith_short_16: ZW4GCAUFA45WRRIO · pith_short_8: ZW4GCAUF

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/ZW4GCAUFA45WRRIOAMKQSU372R \
  | 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: cdb8610285073b68c50e031509537fd4585315430a7a9643eabcb32bec56ee0b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8541fe523b2a8c8a6f43a30d204615e68ba463d409e77575c15313cafd4af8f9",
    "cross_cats_sorted": [
      "astro-ph.IM"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.EP",
    "submitted_at": "2026-07-13T15:54:49Z",
    "title_canon_sha256": "bf71ab32f8bab3827dfd8007cfcfdcc473f96837f80b80978559105d7d197ab3"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2607.11728",
    "kind": "arxiv",
    "version": 1
  }
}