Pith Number

pith:652MWIDN

pith:2018:652MWIDN67XLOZDNTRDYKOQLFP

not attested not anchored not stored refs pending

SDSS-IV MaStar -- A Large and Comprehensive Empirical Stellar Spectral Library: First Release

A-Li Luo, Anne-Marie Weijmans, Audrey Oravetz, Brian Cherinka, Chao Liu, Christopher Waters, Christy Tremonti, Claudia Maraston, Daniel Lazarz, Daniel Oravetz, Daniel Thomas, David R. Law, Dmitry Bizyaev, Edward Schlafly, Eugene Magnier, Gail Zasowski, Gang Zhao, Guy S. Stringfellow, Jennifer Sobeck, Jesus Falcon Barroso, Joel Brownstein, Jon Holtzman, Jos\'e R. S\'anchez-Gallego, Julie Imig, Kaike Pan, Karen Kinemuchi, Keivan Stassun, Kenneth C. Chambers, Kevin Bundy, Kyle McCarthy, Llu\'is Galbany, Maria Argudo-Fern\'andez, Matthew Bershady, Michael R. Blanton, Michael Talbot, Nathan De Lee, Nick Kaiser, Niv Drory, Preethi Nair, Rachael L. Beaton, Renbin Yan, Ronald Wilhelm, Sofia Meneses-Goytia, Steven Majewski, Timothy C. Beers, Yanping Chen, Yong-Heng Zhao, Zheng Zheng

arxiv:1812.02745 v2 · 2018-12-06 · astro-ph.IM · 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{652MWIDN67XLOZDNTRDYKOQLFP}

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	2026-07-05T00:19:35.200556Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f774cb206df7eeb7646d9c47853a0b2bf9ab987460afe6492d8a1baad39d2e78

Aliases

arxiv: 1812.02745 · arxiv_version: 1812.02745v2 · doi: 10.48550/arxiv.1812.02745 · pith_short_12: 652MWIDN67XL · pith_short_16: 652MWIDN67XLOZDN · pith_short_8: 652MWIDN

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/652MWIDN67XLOZDNTRDYKOQLFP \
  | 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: f774cb206df7eeb7646d9c47853a0b2bf9ab987460afe6492d8a1baad39d2e78

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "12dac22552e0388ccfe08383eebb98ec42b311e94c4a8a85528aa697e8082c11",
    "cross_cats_sorted": [
      "astro-ph.GA",
      "astro-ph.SR"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.IM",
    "submitted_at": "2018-12-06T19:00:00Z",
    "title_canon_sha256": "2ed52025f70662c5db142ea64259f6f025b35ef78193d5e78ce4895dfb6797fa"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1812.02745",
    "kind": "arxiv",
    "version": 2
  }
}