Pith Number

pith:UCYKHXZB

pith:2019:UCYKHXZBSFAKAQHQYRC4GKLCQL

not attested not anchored not stored refs pending

Stellar population models based on the SDSS-IV MaStar library of stellar spectra. I. Intermediate-age/old models

A. Concas, C. Maraston, D. Bizyaev, D. Lazarz, D. Thomas, G. Stringfellow, J. Brownstein, J. Lian, J. Neumann, K. Stassun, L. Hill, M. Bershady, N. Drory, R. Yan, S. Meneses-Goytia, T. Parikh, Y. Chen

arxiv:1911.05748 v3 · 2019-11-13 · 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{UCYKHXZBSFAKAQHQYRC4GKLCQL}

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	2026-07-05T01:09:28.311479Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a0b0a3df219140a040f0c445c3296282f6aac3b9d37f58f377349078b9589838

Aliases

arxiv: 1911.05748 · arxiv_version: 1911.05748v3 · doi: 10.48550/arxiv.1911.05748 · pith_short_12: UCYKHXZBSFAK · pith_short_16: UCYKHXZBSFAKAQHQ · pith_short_8: UCYKHXZB

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/UCYKHXZBSFAKAQHQYRC4GKLCQL \
  | 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: a0b0a3df219140a040f0c445c3296282f6aac3b9d37f58f377349078b9589838

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "14be5d45520019311fd1e81af14f356ef5fd82cdb609d677b91f51206f2cb333",
    "cross_cats_sorted": [
      "astro-ph.GA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2019-11-13T19:00:06Z",
    "title_canon_sha256": "1cb1c554f43f7d1ee530cb2706338fd9cf67001e6974cfc78d76747df2a1ce21"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1911.05748",
    "kind": "arxiv",
    "version": 3
  }
}