Pith Number

pith:SZP2IPRX

pith:2025:SZP2IPRXQESHHNWFYFQPKXXSDB

not attested not anchored not stored refs pending

The Progenitor Systems of Classical Novae in M31

Benjamin F. Williams, Carles Badenes, Cristina Jimenez Palau, C.S. Abelson, Katelyn Breivik, Laura Chomiuk, Llu\'is Galbany

arxiv:2501.04925 v2 · 2025-01-09 · astro-ph.SR · 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{SZP2IPRXQESHHNWFYFQPKXXSDB}

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	2026-07-05T10:59:48.591726Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

965fa43e37812473b6c5c160f55ef2184d876ba51584005aa51a7558be40f5a9

Aliases

arxiv: 2501.04925 · arxiv_version: 2501.04925v2 · doi: 10.48550/arxiv.2501.04925 · pith_short_12: SZP2IPRXQESH · pith_short_16: SZP2IPRXQESHHNWF · pith_short_8: SZP2IPRX

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/SZP2IPRXQESHHNWFYFQPKXXSDB \
  | 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: 965fa43e37812473b6c5c160f55ef2184d876ba51584005aa51a7558be40f5a9

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e27dc813e38f096f18f5053160cac95d74d319e89b8f6210866fbbcac64fd0f2",
    "cross_cats_sorted": [
      "astro-ph.GA"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2025-01-09T02:30:07Z",
    "title_canon_sha256": "a94bd57a04aa35afaa715763f2a034c39f1371a0750f40ca9889393ef8ae1165"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2501.04925",
    "kind": "arxiv",
    "version": 2
  }
}