Pith Number

pith:IVPZENUV

pith:2025:IVPZENUVIMUOBJHX5XIXPLJUML

not attested not anchored not stored refs pending

How homogeneous was the chemical enrichment of the Milky Way 13 gigayears ago?

Anish Amarsi, Davide Massari, Donatela Romano, Laura Magrini, Martina Rossi, Riano E. Giribaldi

arxiv:2507.09743 v1 · 2025-07-13 · 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{IVPZENUVIMUOBJHX5XIXPLJUML}

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	2026-07-05T11:36:39.056266Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

455f9236954328e0a4f7edd177ad3462f3df4208fcbb03147a6db20520c9e9e1

Aliases

arxiv: 2507.09743 · arxiv_version: 2507.09743v1 · doi: 10.48550/arxiv.2507.09743 · pith_short_12: IVPZENUVIMUO · pith_short_16: IVPZENUVIMUOBJHX · pith_short_8: IVPZENUV

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/IVPZENUVIMUOBJHX5XIXPLJUML \
  | 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: 455f9236954328e0a4f7edd177ad3462f3df4208fcbb03147a6db20520c9e9e1

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "528ba23cc6e0ab68f4f9262ecef448f328ef258b4b9f4aa74fcaf88cf1396d3e",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2025-07-13T18:49:16Z",
    "title_canon_sha256": "b94fbb3fa4bd532d083af86ba55d8c62ded65959f4128e9ad1efb5bbc7551817"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2507.09743",
    "kind": "arxiv",
    "version": 1
  }
}