Pith Number

pith:2ABGQYEI

pith:2023:2ABGQYEIKWG5RELKF4M7OMLVAQ

not attested not anchored not stored refs pending

200,000 Candidate Very Metal-poor Stars in Gaia DR3 XP Spectra

Alexander P. Ji, Guilherme Limberg, Sergey E. Koposov, Yupeng Yao

arxiv:2303.17676 v2 · 2023-03-30 · 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{2ABGQYEIKWG5RELKF4M7OMLVAQ}

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.

Cited by

1 paper in Pith

Discovery of an $\rm[Fe/H] \sim -4.8$ Star in $Gaia$ XP Spectra

Receipt and verification

First computed	2026-07-05T07:53:07.766709Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d002686088558dd8916a2f19f731750411c5b2aeb93e10c06adf4ddf4f629998

Aliases

arxiv: 2303.17676 · arxiv_version: 2303.17676v2 · doi: 10.48550/arxiv.2303.17676 · pith_short_12: 2ABGQYEIKWG5 · pith_short_16: 2ABGQYEIKWG5RELK · pith_short_8: 2ABGQYEI

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/2ABGQYEIKWG5RELKF4M7OMLVAQ \
  | 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: d002686088558dd8916a2f19f731750411c5b2aeb93e10c06adf4ddf4f629998

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c6f6c9b6ffb4e00a016e4e5edcc5c92f44c545ba6892561cc8a1d2ec29fa5f0a",
    "cross_cats_sorted": [
      "astro-ph.SR"
    ],
    "license": "http://creativecommons.org/licenses/by-nc-nd/4.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2023-03-30T19:38:52Z",
    "title_canon_sha256": "ec9b6af903a6a28c125f3232ab7aec18e39b76e029de039dd3fd3b17efb68d84"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2303.17676",
    "kind": "arxiv",
    "version": 2
  }
}