Pith Number

pith:QSLVIWHM

pith:2015:QSLVIWHM6465TTDILHMPFOOFEM

not attested not anchored not stored refs pending

Cepheid Variables in the Maser-Host Galaxy NGC 4258

Lucas M. Macri (Texas A&M University), Samantha L. Hoffmann

arxiv:1503.07953 v1 · 2015-03-27 · astro-ph.SR · astro-ph.CO

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{QSLVIWHM6465TTDILHMPFOOFEM}

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	2026-05-18T02:03:33.418612Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

84975458ecf73dd9cc6859d8f2b9c5233b78aa76dc61f65f255e7f04a1154c82

Aliases

arxiv: 1503.07953 · arxiv_version: 1503.07953v1 · doi: 10.48550/arxiv.1503.07953 · pith_short_12: QSLVIWHM6465 · pith_short_16: QSLVIWHM6465TTDI · pith_short_8: QSLVIWHM

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/QSLVIWHM6465TTDILHMPFOOFEM \
  | 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: 84975458ecf73dd9cc6859d8f2b9c5233b78aa76dc61f65f255e7f04a1154c82

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "13c31c7d9a3822a2f0b29b9e481518bc8de681dcf09e3fe8f1f387798b653fa7",
    "cross_cats_sorted": [
      "astro-ph.CO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2015-03-27T03:44:10Z",
    "title_canon_sha256": "a334b47e953aae770607ff75429c87db4d6138fddc7a2863676e842bd6760cf2"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1503.07953",
    "kind": "arxiv",
    "version": 1
  }
}