Pith Number

pith:TO4DUZDS

pith:2022:TO4DUZDSSA74UGYUVPWEUT4FVY

not attested not anchored not stored refs pending

The GALAH Survey: A New Sample of Extremely Metal-Poor Stars Using A Machine Learning Classification Algorithm

Andrew R. Casey, Arvind C.N. Hughes, Chengyuan Li, Daniel B. Zucker, Gary S. Da Costa, Gayandhi M. De Silva, Geraint F. Lewis, Jane Lin, Janez Kos, Jeffrey Simpson, Joss Bland-Hawthorn, Karin Lind, Katharine J. Schlesinger, Ken C. Freeman, Lee R. Spitler, Michael R. Hayden, Sanjib Sharma, Sarah L. Martell, Sven Buder, the GALAH collaboration, Thomas Nordlander, Tomaz Zwitter, Valentina D'Orazi, Yuan-Sen Ting

arxiv:2203.10843 v2 · 2022-03-21 · 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{TO4DUZDSSA74UGYUVPWEUT4FVY}

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	2026-07-05T04:46:53.533392Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

9bb83a6472903fca1b14abec4a4f85ae33c72eb1589b387524743b44eb56ab89

Aliases

arxiv: 2203.10843 · arxiv_version: 2203.10843v2 · doi: 10.48550/arxiv.2203.10843 · pith_short_12: TO4DUZDSSA74 · pith_short_16: TO4DUZDSSA74UGYU · pith_short_8: TO4DUZDS

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/TO4DUZDSSA74UGYUVPWEUT4FVY \
  | 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: 9bb83a6472903fca1b14abec4a4f85ae33c72eb1589b387524743b44eb56ab89

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a44c624524538a9c797a13289ffc19a2e928a997d953b5b2a43c1d875a31f372",
    "cross_cats_sorted": [
      "astro-ph.SR"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2022-03-21T10:05:08Z",
    "title_canon_sha256": "5e1f87ffc56ad258e434afbc79115636926cf2a5f127f837274a32396c675876"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2203.10843",
    "kind": "arxiv",
    "version": 2
  }
}