Pith Number

pith:OYP6ASQ4

pith:2018:OYP6ASQ4PWNXWIJSWYQWWO2VPN

not attested not anchored not stored refs pending

Tracing the formation of the Milky Way through ultra metal-poor stars

Anke Arentsen, David S. Aguado, Eline Tolstoy, Else Starkenburg, Federico Sestito, Jonay I. Gonzalez Hernandez, Julio F. Navarro, Kim A. Venn, Morgan Fouesneau, Nicolas F. Martin, Nicolas Longeard, Pascale Jablonka, Raymond G. Carlberg, Rodrigo Ibata

arxiv:1811.03099 v2 · 2018-11-07 · 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{OYP6ASQ4PWNXWIJSWYQWWO2VPN}

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	2026-05-17T23:55:54.220080Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

761fe04a1c7d9b7b2132b6216b3b557b5881a29f008d915e29f475eca7276a7d

Aliases

arxiv: 1811.03099 · arxiv_version: 1811.03099v2 · doi: 10.48550/arxiv.1811.03099 · pith_short_12: OYP6ASQ4PWNX · pith_short_16: OYP6ASQ4PWNXWIJS · pith_short_8: OYP6ASQ4

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/OYP6ASQ4PWNXWIJSWYQWWO2VPN \
  | 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: 761fe04a1c7d9b7b2132b6216b3b557b5881a29f008d915e29f475eca7276a7d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4822e14d63259ebeca5f40303d5b80dd51b82978c4597eb155ce27247a195b63",
    "cross_cats_sorted": [
      "astro-ph.SR"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2018-11-07T19:00:01Z",
    "title_canon_sha256": "f5648b0f2cd6a12592c98d9f4f4e89a3f6248bb639597a65e93112c6404db756"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1811.03099",
    "kind": "arxiv",
    "version": 2
  }
}