Pith Number

pith:BADSP7UM

pith:2018:BADSP7UMYFHA5WWQGTAVOOBMJQ

not attested not anchored not stored refs pending

A Near-Infrared Period-Luminosity Relation for Miras in NGC 4258, an Anchor for a New Distance Ladder

Adam G. Riess, Caroline D. Huang, Christopher Klein, David O. Jones, Joshua Bloom, Lucas M. Macri, Patricia A. Whitelock, Richard I. Anderson, Samantha L. Hoffmann, Stefano Casertano, Wenlong Yuan

arxiv:1801.02711 v2 · 2018-01-08 · astro-ph.CO · 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{BADSP7UMYFHA5WWQGTAVOOBMJQ}

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	2026-05-18T00:17:41.331347Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

080727fe8cc14e0edad034c157382c4c12afc36c9eba8463f5feb12028dfca62

Aliases

arxiv: 1801.02711 · arxiv_version: 1801.02711v2 · doi: 10.48550/arxiv.1801.02711 · pith_short_12: BADSP7UMYFHA · pith_short_16: BADSP7UMYFHA5WWQ · pith_short_8: BADSP7UM

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/BADSP7UMYFHA5WWQGTAVOOBMJQ \
  | 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: 080727fe8cc14e0edad034c157382c4c12afc36c9eba8463f5feb12028dfca62

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0c05df1b0a7c000df1bae001d04fcde73b3bcbf707e746f0e9fa7c791db4dd36",
    "cross_cats_sorted": [
      "astro-ph.GA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2018-01-08T23:04:52Z",
    "title_canon_sha256": "fbee9abad95f4e8ba5f047388919cd3e01d6a2c3a1cada70c372932e5e79a9a9"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1801.02711",
    "kind": "arxiv",
    "version": 2
  }
}