Pith Number

pith:2F2D5SSM

pith:2025:2F2D5SSMM3RDGUZCX5HLBBGGCT

not attested not anchored not stored refs pending

SpecPT (Spectroscopy Pre-trained Transformer) Model for Extragalactic Spectroscopy: I. Architecture and Automated Redshift Measurement

Clive Binu, Jeyhan S. Kartaltepe, Rohan Pattnaik

arxiv:2501.01070 v1 · 2025-01-02 · astro-ph.IM · astro-ph.GA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{2F2D5SSMM3RDGUZCX5HLBBGGCT}

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.

Cited by

1 paper in Pith

Generalization from Low- to Moderate-Resolution Spectra with Neural Networks for Stellar Parameter Estimation: A Case Study with DESI

Receipt and verification

First computed	2026-07-05T11:19:23.391743Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d1743eca4c66e2335322bf4eb084c614f7edd2a82c05273d1f440d480c393c16

Aliases

arxiv: 2501.01070 · arxiv_version: 2501.01070v1 · doi: 10.48550/arxiv.2501.01070 · pith_short_12: 2F2D5SSMM3RD · pith_short_16: 2F2D5SSMM3RDGUZC · pith_short_8: 2F2D5SSM

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/2F2D5SSMM3RDGUZCX5HLBBGGCT \
  | 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: d1743eca4c66e2335322bf4eb084c614f7edd2a82c05273d1f440d480c393c16

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2c6d14d998f917a728a1e9edb9dbfb33ab13f6ca7f9ef97982b4399c4a272578",
    "cross_cats_sorted": [
      "astro-ph.GA"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "astro-ph.IM",
    "submitted_at": "2025-01-02T05:40:39Z",
    "title_canon_sha256": "a37f27755539f971539d7e53ace7d47a04dc2e03fd9c276c148a697804fce1ac"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2501.01070",
    "kind": "arxiv",
    "version": 1
  }
}