Pith Number

pith:R5XMHFSK

pith:2024:R5XMHFSKNBVD3FGHIG5DTRDWBX

not attested not anchored not stored refs pending

Optical constraints on the coldest metal-poor population

Bartosz Gauza, Carlos Quezada, Eduardo L. Mart\'in, Henri M. J. Boffin, Jerry Jun-Yan Zhang, Mar\'ia Rosa Zapatero Osorio, Nafise Sedighi, Nicolas Lodieu, Rafael Rebolo, Tariq Shahbaz, Valentin D. Ivanov, Victor J. S. B\'ejar, Yakiv V. Pavlenko

arxiv:2412.04393 v2 · 2024-12-05 · 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{R5XMHFSKNBVD3FGHIG5DTRDWBX}

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	2026-07-05T11:23:07.916452Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8f6ec3964a686a3d94c741ba39c4760df2ed8046e1d33fc6e8572d44ed38d851

Aliases

arxiv: 2412.04393 · arxiv_version: 2412.04393v2 · doi: 10.48550/arxiv.2412.04393 · pith_short_12: R5XMHFSKNBVD · pith_short_16: R5XMHFSKNBVD3FGH · pith_short_8: R5XMHFSK

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/R5XMHFSKNBVD3FGHIG5DTRDWBX \
  | 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: 8f6ec3964a686a3d94c741ba39c4760df2ed8046e1d33fc6e8572d44ed38d851

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "34f40eb7fa87cc8c0faf65ac6c47c61e49ed3a7c2289ee29b52b301fb9cddd4b",
    "cross_cats_sorted": [
      "astro-ph.GA"
    ],
    "license": "http://creativecommons.org/publicdomain/zero/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2024-12-05T18:08:01Z",
    "title_canon_sha256": "6570948739721af0d288972dc8064e7b11a14945c8dd158cf0a94ea68d07412f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2412.04393",
    "kind": "arxiv",
    "version": 2
  }
}