Pith Number

pith:ZUDB67EB

pith:2024:ZUDB67EBW7YSE3Y2NNS72HYXHG

not attested not anchored not stored refs pending

A survey of extremely metal-poor gas at cosmic noon: evidence of elevated [O/Fe]

Gwen C. Rudie, Louise Welsh, Max Pettini, Michele Fumagalli, Ryan Cooke

arxiv:2409.07525 v1 · 2024-09-11 · 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{ZUDB67EBW7YSE3Y2NNS72HYXHG}

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	2026-07-05T09:37:40.487568Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

cd061f7c81b7f1226f1a6b65fd1f17398b2e8b347b2149d5a23031a7848c9de8

Aliases

arxiv: 2409.07525 · arxiv_version: 2409.07525v1 · doi: 10.48550/arxiv.2409.07525 · pith_short_12: ZUDB67EBW7YS · pith_short_16: ZUDB67EBW7YSE3Y2 · pith_short_8: ZUDB67EB

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/ZUDB67EBW7YSE3Y2NNS72HYXHG \
  | 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: cd061f7c81b7f1226f1a6b65fd1f17398b2e8b347b2149d5a23031a7848c9de8

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a1767ceb8293be0eb208f15c38dd763cff4b1252dd5aeafd2344d11e7809b7c6",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2024-09-11T18:00:03Z",
    "title_canon_sha256": "74f0cf3b7295a0ceb8afc66cb2a649c16426f4e24d0af7577b6ec31e6178fcaa"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2409.07525",
    "kind": "arxiv",
    "version": 1
  }
}