Pith Number

pith:W6F4JFU7

pith:2025:W6F4JFU7CIOACZX47552ARPL4H

not attested not anchored not stored refs pending

The Rich JWST Spectrum of the Western Nucleus of Arp 220: Shocked Hot Core Chemistry Dominates the Inner Disk

Almudena Alonso Herrero, \'Alvaro Labiano, Bernhard Brandl, Daniel Dicken, Ewine van Dishoeck, Gillian Wright, G\"oran \"Ostlin, Lara Pantoni, Laura Hermosa Mu\~noz, Luis Colina, Macarena Garc\'ia Mar\'iin, Manuel G\"udel, Martin Ward, Michele Perna, Olivia Jones, Paul van der Werf, Pierre Guillard, Serena Viti, Thomas Greve, Thomas Henning, Thomas Ray, Torsten B\"oker, Victorine Buiten

arxiv:2502.10271 v2 · 2025-02-14 · 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{W6F4JFU7CIOACZX47552ARPL4H}

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	2026-07-05T11:41:21.494436Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b78bc4969f121c0166fcff7ba045ebe1fa3098b7662dd37d66107c43cad74269

Aliases

arxiv: 2502.10271 · arxiv_version: 2502.10271v2 · doi: 10.48550/arxiv.2502.10271 · pith_short_12: W6F4JFU7CIOA · pith_short_16: W6F4JFU7CIOACZX4 · pith_short_8: W6F4JFU7

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/W6F4JFU7CIOACZX47552ARPL4H \
  | 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: b78bc4969f121c0166fcff7ba045ebe1fa3098b7662dd37d66107c43cad74269

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "fe1bd86a09b63fdf8dec8f37e819648da7a78fc13f41073b582a9065e6dd3213",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2025-02-14T16:29:43Z",
    "title_canon_sha256": "18ec22e3b66b84c2235f1959caef1da79a0627fe7233fa54a183ae83ca70e3b2"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2502.10271",
    "kind": "arxiv",
    "version": 2
  }
}