Pith Number

pith:75M7UXXF

pith:2021:75M7UXXFZ6324GJK75NHGSZJV6

not attested not anchored not stored refs pending

The MAGIC project. III. Radial and azimuthal Galactic abundance gradients using classical Cepheids

A. Kniazev, B. Lemasle, E.K. Grebel, G. Bono, I.A. Usenko, I.L. Andronov, L. Chinarova, L. Shakun, R.da Silva, V. Kovtyukh

arxiv:2112.04258 v1 · 2021-12-08 · astro-ph.GA · 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{75M7UXXFZ6324GJK75NHGSZJV6}

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	2026-07-05T03:40:54.271221Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ff59fa5ee5cfb7ae192aff5a734b29af84601db98756b96e532f8c53b3f8e684

Aliases

arxiv: 2112.04258 · arxiv_version: 2112.04258v1 · doi: 10.48550/arxiv.2112.04258 · pith_short_12: 75M7UXXFZ632 · pith_short_16: 75M7UXXFZ6324GJK · pith_short_8: 75M7UXXF

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/75M7UXXFZ6324GJK75NHGSZJV6 \
  | 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: ff59fa5ee5cfb7ae192aff5a734b29af84601db98756b96e532f8c53b3f8e684

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e92afa935e4f4e600e4ed688bc7fecaf4aaf790b0c0f50d09f818dd864ccc7d5",
    "cross_cats_sorted": [
      "astro-ph.SR"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2021-12-08T12:34:19Z",
    "title_canon_sha256": "f49f3545b3cc81056a48be7047077bcd2d513623c733804b96e10140d6d13715"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2112.04258",
    "kind": "arxiv",
    "version": 1
  }
}