Pith Number

pith:5TMT743N

pith:2017:5TMT743NUSLQDLNH6QC3KNW4I2

not attested not anchored not stored refs pending

$\mathit{Chempy}$: A flexible chemical evolution model for abundance fitting - Do the Sun's abundances alone constrain chemical evolution models?

Andreas Just, Hans-Walter Rix, Jan Rybizki

arxiv:1702.08729 v2 · 2017-02-28 · astro-ph.GA · astro-ph.IM · 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{5TMT743NUSLQDLNH6QC3KNW4I2}

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	2026-05-18T00:35:23.473935Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ecd93ff36da49701ada7f405b536dc46af6e3c1a1c77b8693f54c408a9378b1d

Aliases

arxiv: 1702.08729 · arxiv_version: 1702.08729v2 · doi: 10.48550/arxiv.1702.08729 · pith_short_12: 5TMT743NUSLQ · pith_short_16: 5TMT743NUSLQDLNH · pith_short_8: 5TMT743N

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/5TMT743NUSLQDLNH6QC3KNW4I2 \
  | 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: ecd93ff36da49701ada7f405b536dc46af6e3c1a1c77b8693f54c408a9378b1d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0929b75a3f709289edb1af42ba9ea67e4c06b581949abc16314511003bdadc80",
    "cross_cats_sorted": [
      "astro-ph.IM",
      "astro-ph.SR"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2017-02-28T10:29:59Z",
    "title_canon_sha256": "99660b4a2d89f940128685d03bb22a8e7cff0502ccb0b4c28b550990ee1a82e1"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1702.08729",
    "kind": "arxiv",
    "version": 2
  }
}