Pith Number

pith:BGPARNWW

pith:2026:BGPARNWWVXE66SQGPEIFRFMNA3

not attested not anchored not stored refs pending

The explosive growth of the Messier 74 galaxy. A galaxy doubling its size in less than a Gigayear

Ignacio Ruiz Cejudo, Ignacio Trujillo, Miguel R. Alarcon, Miquel Serra-Ricart, Ouldouz Kaboud, Sergio Guerra Arencibia

arxiv:2606.20793 v1 · 2026-06-18 · 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{BGPARNWWVXE66SQGPEIFRFMNA3}

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	2026-06-23T00:11:57.054097Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

099e08b6d6adc9ef4a06791058958d06cec3c4b3ff7d3fcb65447a0890bf5e54

Aliases

arxiv: 2606.20793 · arxiv_version: 2606.20793v1 · doi: 10.48550/arxiv.2606.20793 · pith_short_12: BGPARNWWVXE6 · pith_short_16: BGPARNWWVXE66SQG · pith_short_8: BGPARNWW

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/BGPARNWWVXE66SQGPEIFRFMNA3 \
  | 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: 099e08b6d6adc9ef4a06791058958d06cec3c4b3ff7d3fcb65447a0890bf5e54

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "aa834695eaefb5817861e5666a07f9e6191da78bc4fdb4a4c81caaa94cac47d9",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2026-06-18T18:00:01Z",
    "title_canon_sha256": "c8456e1a04d49001e3dd85f0eb64dfd363e305665ecc765d14664c6082214c38"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2606.20793",
    "kind": "arxiv",
    "version": 1
  }
}