Pith Number

pith:M3VJZ5FM

pith:2017:M3VJZ5FMJMXDWFOGW545K344XI

not attested not anchored not stored refs pending

No Evidence for Chemical Abundance Variations in the Intermediate-age Cluster NGC 1783

Chengyuan Li, Hao Zhang, Richard de Grijs, Xiaohan Wu

arxiv:1712.08161 v1 · 2017-12-21 · 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{M3VJZ5FMJMXDWFOGW545K344XI}

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	2026-05-18T00:22:57.027128Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

66ea9cf4ac4b2e3b15c6b779d56f9cba3d85f75ff7649155158dd703590764fa

Aliases

arxiv: 1712.08161 · arxiv_version: 1712.08161v1 · doi: 10.48550/arxiv.1712.08161 · pith_short_12: M3VJZ5FMJMXD · pith_short_16: M3VJZ5FMJMXDWFOG · pith_short_8: M3VJZ5FM

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/M3VJZ5FMJMXDWFOGW545K344XI \
  | 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: 66ea9cf4ac4b2e3b15c6b779d56f9cba3d85f75ff7649155158dd703590764fa

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0718a61dec9764f5e5c1da5a554198fe1c24d47de2f5519033e6ae6e5a656a44",
    "cross_cats_sorted": [
      "astro-ph.SR"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2017-12-21T00:34:11Z",
    "title_canon_sha256": "b640903f7981ccc2cc87d87a61ce33058dab7bdb8523e90cf3aab8c573c576cb"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1712.08161",
    "kind": "arxiv",
    "version": 1
  }
}