Pith Number

pith:MEAFIFJ6

pith:2025:MEAFIFJ6XNGMUF2XUOWHYWHVK2

not attested not anchored not stored refs pending

Betelgeuse, the Prototypical Red Supergiant

Andrea K. Dupree, Miguel Montarg\`es

arxiv:2507.15966 v1 · 2025-07-21 · 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{MEAFIFJ6XNGMUF2XUOWHYWHVK2}

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	2026-07-05T11:41:00.025320Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

610054153ebb4cca1757a3ac7c58f556bf71cb3f95e03773b0a111c125b379b4

Aliases

arxiv: 2507.15966 · arxiv_version: 2507.15966v1 · doi: 10.48550/arxiv.2507.15966 · pith_short_12: MEAFIFJ6XNGM · pith_short_16: MEAFIFJ6XNGMUF2X · pith_short_8: MEAFIFJ6

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/MEAFIFJ6XNGMUF2XUOWHYWHVK2 \
  | 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: 610054153ebb4cca1757a3ac7c58f556bf71cb3f95e03773b0a111c125b379b4

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1a4edd91c28898531bcb5a3a22236c50d129902a591199e58598ee3614eb5e88",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2025-07-21T18:05:05Z",
    "title_canon_sha256": "bb1fc28cf253d7841cd3d5a0d4c6b495f7fb9634442fbc5bfc3ba378b03230a6"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2507.15966",
    "kind": "arxiv",
    "version": 1
  }
}