Pith Number

pith:LJEWH4IF

pith:2018:LJEWH4IFTTWDNMXQUVEGQLPYBV

not attested not anchored not stored refs pending

The last 5 Gyr of Galactic chemical evolution based on H II region abundances derived from a temperature independent method

Antonio Peimbert, Leticia Carigi, Manuel Peimbert

arxiv:1802.09688 v3 · 2018-02-27 · 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{LJEWH4IFTTWDNMXQUVEGQLPYBV}

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	2026-05-17T23:50:59.930253Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

5a4963f1059cec36b2f0a548682df80d41b59eb99543ca7abaf898581184961a

Aliases

arxiv: 1802.09688 · arxiv_version: 1802.09688v3 · doi: 10.48550/arxiv.1802.09688 · pith_short_12: LJEWH4IFTTWD · pith_short_16: LJEWH4IFTTWDNMXQ · pith_short_8: LJEWH4IF

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/LJEWH4IFTTWDNMXQUVEGQLPYBV \
  | 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: 5a4963f1059cec36b2f0a548682df80d41b59eb99543ca7abaf898581184961a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3bc2ce0ae160b054e18b51b25b7d636fa2a5c48ee5b9f78382f163a88912ab31",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2018-02-27T02:24:38Z",
    "title_canon_sha256": "78471406308b366fa74919762aac71659a3c916583bb7f9e4c698cb46eed3ad7"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1802.09688",
    "kind": "arxiv",
    "version": 3
  }
}