Pith Number

pith:PDIZQ2X6

pith:2020:PDIZQ2X6DSDYF3ZA3YVOO25RCV

not attested not anchored not stored refs pending

Mono-enriched stars and Galactic chemical evolution -- Possible biases in observations and theory

Andreas Koch, Andrew J. Gallagher, Camilla Juul Hansen, Elisabetta Caffau, Huawei W. Zhang, Ilya Ilyin, Klauss G. Strassmeier, Lyudmila Mashonkina, Maria Bergemann, Mattis Magg, Ralf S. Klessen, Tatyana Sitnova

arxiv:2009.11876 v1 · 2020-09-24 · astro-ph.SR · 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{PDIZQ2X6DSDYF3ZA3YVOO25RCV}

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	2026-07-05T01:48:55.384577Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

78d1986afe1c8782ef20de2ae76bb11540fb9eaaf4225a37a32b519ce7dd73ee

Aliases

arxiv: 2009.11876 · arxiv_version: 2009.11876v1 · doi: 10.48550/arxiv.2009.11876 · pith_short_12: PDIZQ2X6DSDY · pith_short_16: PDIZQ2X6DSDYF3ZA · pith_short_8: PDIZQ2X6

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/PDIZQ2X6DSDYF3ZA3YVOO25RCV \
  | 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: 78d1986afe1c8782ef20de2ae76bb11540fb9eaaf4225a37a32b519ce7dd73ee

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4e8078f228308628c9803050bfb261aa9d8e00273d76776c921edd18e0132c3c",
    "cross_cats_sorted": [
      "astro-ph.GA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2020-09-24T18:00:02Z",
    "title_canon_sha256": "aef0ee38e73842dc30aef4af574415f3fb66d96c2444f6eb26f7fe5b488eb948"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2009.11876",
    "kind": "arxiv",
    "version": 1
  }
}