Pith Number

pith:TI5KF7C5

pith:2021:TI5KF7C5DZBDOMFLVXX52MGWW3

not attested not anchored not stored refs pending

Beyond spectroscopy. I. Metallicities, distances, and age estimates for over twenty million stars from SMSS DR2 and Gaia EDR3

Christian Wolf, Christopher A. Onken, Chun Wang, Derek Shank, Haibo Yuan, Huawei Zhang, Jianrong Shi, Timothy C. Beers, Yang Huang, Young Sun Lee, Zhou Fan

arxiv:2104.14154 v2 · 2021-04-29 · 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{TI5KF7C5DZBDOMFLVXX52MGWW3}

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	2026-07-05T03:54:55.985404Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

9a3aa2fc5d1e423730abadefdd30d6b6f8a3cf53b0c9cb10eeef75991e1e0342

Aliases

arxiv: 2104.14154 · arxiv_version: 2104.14154v2 · doi: 10.48550/arxiv.2104.14154 · pith_short_12: TI5KF7C5DZBD · pith_short_16: TI5KF7C5DZBDOMFL · pith_short_8: TI5KF7C5

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/TI5KF7C5DZBDOMFLVXX52MGWW3 \
  | 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: 9a3aa2fc5d1e423730abadefdd30d6b6f8a3cf53b0c9cb10eeef75991e1e0342

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5ef714fae7146112311aefff7048f6eacdec59ef96b4f7670eed41c348f7b181",
    "cross_cats_sorted": [
      "astro-ph.GA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2021-04-29T07:31:47Z",
    "title_canon_sha256": "c5796ecfdf5c41254f8c051f29a3d5f22ab55b7b9f0853681c64014714887948"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2104.14154",
    "kind": "arxiv",
    "version": 2
  }
}