Pith Number

pith:NCLT3WRW

pith:2025:NCLT3WRW4MKJE3INHBQ5BCUBQS

not attested not anchored not stored refs pending

STCTM: a forward modeling and retrieval framework for stellar contamination and stellar spectra

Caroline Piaulet-Ghorayeb

arxiv:2508.19297 v1 · 2025-08-25 · astro-ph.IM · astro-ph.EP · 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{NCLT3WRW4MKJE3INHBQ5BCUBQS}

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	2026-07-05T11:59:42.718447Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

68973dda36e314926d0d3861d08a818482a41fee2d04a0b5fd16c4ba73d68abf

Aliases

arxiv: 2508.19297 · arxiv_version: 2508.19297v1 · doi: 10.48550/arxiv.2508.19297 · pith_short_12: NCLT3WRW4MKJ · pith_short_16: NCLT3WRW4MKJE3IN · pith_short_8: NCLT3WRW

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/NCLT3WRW4MKJE3INHBQ5BCUBQS \
  | 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: 68973dda36e314926d0d3861d08a818482a41fee2d04a0b5fd16c4ba73d68abf

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2ba7f156663dfa19e9f3764331361e433e9e84bb3b67f77a7f7e3d9c0989453f",
    "cross_cats_sorted": [
      "astro-ph.EP",
      "astro-ph.SR"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "astro-ph.IM",
    "submitted_at": "2025-08-25T18:00:06Z",
    "title_canon_sha256": "d003d15e2725b255996a82dc9413c7437c21163187ddb8b822cb6d6b51fc37b5"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2508.19297",
    "kind": "arxiv",
    "version": 1
  }
}