Pith Number

pith:USWPWVQ4

pith:2025:USWPWVQ4N3XD22XHDZPMDRAVGG

not attested not anchored not stored refs pending

Carbon Stars From Gaia DR3 and the Space Density of Dwarf Carbon Stars

(2) University of California, (3) Center for Astrophysics | Harvard & Smithsonian, (4) California Institute of Technology), Benjamin R. Roulston (1), Evan Portnoi (4) ((1) Clarkson University, Naunet Leonhardes-Barboza (2), Paul J. Green (3), Santa Cruz

arxiv:2501.18763 v1 · 2025-01-30 · 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{USWPWVQ4N3XD22XHDZPMDRAVGG}

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	2026-07-05T10:07:51.194919Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a4acfb561c6eee3d6ae71e5ec1c41531bf57b49f3c99bd28ca1e3fed2adfc35d

Aliases

arxiv: 2501.18763 · arxiv_version: 2501.18763v1 · doi: 10.48550/arxiv.2501.18763 · pith_short_12: USWPWVQ4N3XD · pith_short_16: USWPWVQ4N3XD22XH · pith_short_8: USWPWVQ4

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/USWPWVQ4N3XD22XHDZPMDRAVGG \
  | 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: a4acfb561c6eee3d6ae71e5ec1c41531bf57b49f3c99bd28ca1e3fed2adfc35d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "983ab600030d264663f916a68f14549c5656c1ca44bc2f91ff6c77c731be45af",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2025-01-30T21:33:58Z",
    "title_canon_sha256": "f9da717f5d347813e0eb40247b6ba047a9b26f4e4546fca232d8222ddcd51d20"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2501.18763",
    "kind": "arxiv",
    "version": 1
  }
}