Pith Number

pith:MLNWA5GC

pith:2021:MLNWA5GCQHRHZSOF4EHI6U4YXV

not attested not anchored not stored refs pending

sMILES: A Library of Semi-Empirical MILES Stellar Spectra with Variable [$\alpha$/Fe] Abundances

Adam T. Knowles, Alex Vazdekis, Anne E. Sansom, Carlos Allende Prieto

arxiv:2104.04822 v2 · 2021-04-10 · 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{MLNWA5GCQHRHZSOF4EHI6U4YXV}

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	2026-07-05T02:32:05.178514Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

62db6074c281e27cc9c5e10e8f5398bd45c21ab2ee00bb7c5d334f3476246364

Aliases

arxiv: 2104.04822 · arxiv_version: 2104.04822v2 · doi: 10.48550/arxiv.2104.04822 · pith_short_12: MLNWA5GCQHRH · pith_short_16: MLNWA5GCQHRHZSOF · pith_short_8: MLNWA5GC

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/MLNWA5GCQHRHZSOF4EHI6U4YXV \
  | 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: 62db6074c281e27cc9c5e10e8f5398bd45c21ab2ee00bb7c5d334f3476246364

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "77c42cc29f5688a567427e18ddfececcceb9fe17810de1bfb324d80390624702",
    "cross_cats_sorted": [
      "astro-ph.GA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2021-04-10T17:24:18Z",
    "title_canon_sha256": "0889967b42f4ac428a36ebb21cdec0aa37929e16c4d3bde37f9cc9f02905fe52"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2104.04822",
    "kind": "arxiv",
    "version": 2
  }
}