Pith Number

pith:3M7UCCKL

pith:2021:3M7UCCKLR2NM7NEBYFDCT6EUY4

not attested not anchored not stored refs pending

Stellar Metallicities from SkyMapper Photometry II: Precise photometric metallicities of $\sim$280,000 giant stars with [Fe/H] $< -0.75$ in the Milky Way

Anastasiia V. Uvarova, Anirudh Chiti, Anna Frebel, Mohammad K. Mardini, Tatsuya W. Daniel, Xiaowei Ou

arxiv:2103.16660 v1 · 2021-03-30 · 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{3M7UCCKLR2NM7NEBYFDCT6EUY4}

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	2026-07-05T02:47:34.753483Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

db3f41094b8e9acfb481c14629f894c735d61d4d72738f4ced20e0e4427a7bf0

Aliases

arxiv: 2103.16660 · arxiv_version: 2103.16660v1 · doi: 10.48550/arxiv.2103.16660 · pith_short_12: 3M7UCCKLR2NM · pith_short_16: 3M7UCCKLR2NM7NEB · pith_short_8: 3M7UCCKL

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/3M7UCCKLR2NM7NEBYFDCT6EUY4 \
  | 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: db3f41094b8e9acfb481c14629f894c735d61d4d72738f4ced20e0e4427a7bf0

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b30805fcb46e17d014aa2c1a8a0d1b4be2afbb58551d8eec2c696e77d84aaeea",
    "cross_cats_sorted": [
      "astro-ph.SR"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2021-03-30T20:08:12Z",
    "title_canon_sha256": "aed4c51db82562ff7b35976ed7f2184cf6295b483c168300f347c54cc452b5cd"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2103.16660",
    "kind": "arxiv",
    "version": 1
  }
}