Pith Number

pith:MAFOAOAT

pith:2025:MAFOAOATWLHJGWDGMN3IIXUGFQ

not attested not anchored not stored refs pending

Stephenson 2 DFK 52: Discovery of an exotic red supergiant in the massive stellar cluster RSGC2

Elvire De Beck, Guillermo Quintana-Lacaci, Mark A. Siebert, Wouter Vlemmings

arxiv:2507.11609 v1 · 2025-07-15 · astro-ph.GA · 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{MAFOAOATWLHJGWDGMN3IIXUGFQ}

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	2026-07-05T11:37:47.302221Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

600ae03813b2ce9358666376845e862c05ff81801b4b23b9a607919e877938e5

Aliases

arxiv: 2507.11609 · arxiv_version: 2507.11609v1 · doi: 10.48550/arxiv.2507.11609 · pith_short_12: MAFOAOATWLHJ · pith_short_16: MAFOAOATWLHJGWDG · pith_short_8: MAFOAOAT

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/MAFOAOATWLHJGWDGMN3IIXUGFQ \
  | 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: 600ae03813b2ce9358666376845e862c05ff81801b4b23b9a607919e877938e5

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "fb9c864d653c43c204c9c8145b9cd4c24d4b5a4844b25d7018b57d5a5210e550",
    "cross_cats_sorted": [
      "astro-ph.SR"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2025-07-15T18:00:01Z",
    "title_canon_sha256": "69822640b1dd2b01f805868f8e0f3b6c62c1b6ac9d874e4489517e17f118df3f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2507.11609",
    "kind": "arxiv",
    "version": 1
  }
}