Pith Number

pith:QQ4TVX3Z

pith:2020:QQ4TVX3Z2LUGT66FZNHUY34E7U

not attested not anchored not stored refs pending

Exploring the Galaxy's halo and very metal-weak thick disk with SkyMapper and Gaia DR2

A. D. Mackey, A. F. Marino, A. Frebel, A. M. Amarsi, A. P. Milone, A. R. Casey, B. P. Schmidt, D. Yong, G. Cordoni, G. S. Da Costa, J. E. Norris, K. Lind, M. Asplund, M. S. Bessell, S. J. Murphy, S. Monty, T. Nordlander, T. Xylakis-Dornbusch, X. D. Gao

arxiv:2011.01189 v1 · 2020-11-02 · 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{QQ4TVX3Z2LUGT66FZNHUY34E7U}

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	2026-07-05T01:50:38.262835Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

84393adf79d2e869fbc5cb4f4c6f84fd19ceef3b1e7dda06c27639a3da579e3f

Aliases

arxiv: 2011.01189 · arxiv_version: 2011.01189v1 · doi: 10.48550/arxiv.2011.01189 · pith_short_12: QQ4TVX3Z2LUG · pith_short_16: QQ4TVX3Z2LUGT66F · pith_short_8: QQ4TVX3Z

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/QQ4TVX3Z2LUGT66FZNHUY34E7U \
  | 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: 84393adf79d2e869fbc5cb4f4c6f84fd19ceef3b1e7dda06c27639a3da579e3f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "57a1e8fc6549815ccbb6096f4eb2dc2fa348227d4b70ae3316dc90aa6d385fbd",
    "cross_cats_sorted": [
      "astro-ph.SR"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2020-11-02T18:29:00Z",
    "title_canon_sha256": "84a192bc801ea16c89d23823c993ed0395770438c91650c971d4ce4bdb6b58b5"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2011.01189",
    "kind": "arxiv",
    "version": 1
  }
}