Pith Number

pith:V3Y32FOM

pith:2014:V3Y32FOMNQMX63NNWPRL5BBPNU

not attested not anchored not stored refs pending

The Cepheid distance to the maser-host galaxy NGC 4258: Studying systematics with the Large Binocular Telescope

(2) Texas A&M University, (3) Johns Hopkins University, 4), (4) Space Telescope Science Institute), A. G. Riess (3, C. S. Kochanek (1), J. R. Gerke (1), K. Z. Stanek (1) ((1) The Ohio State University, L. M. Macri (2), M. M. Fausnaugh (1)

arxiv:1412.2138 v2 · 2014-12-05 · 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{V3Y32FOMNQMX63NNWPRL5BBPNU}

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	2026-05-18T02:03:35.040170Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

aef1bd15cc6c197f6dadb3e2be842f6d00850965e1d3705aab2ffeeed405c62f

Aliases

arxiv: 1412.2138 · arxiv_version: 1412.2138v2 · doi: 10.48550/arxiv.1412.2138 · pith_short_12: V3Y32FOMNQMX · pith_short_16: V3Y32FOMNQMX63NN · pith_short_8: V3Y32FOM

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/V3Y32FOMNQMX63NNWPRL5BBPNU \
  | 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: aef1bd15cc6c197f6dadb3e2be842f6d00850965e1d3705aab2ffeeed405c62f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d4a7c9294c9b89564d8829fd3249c41e77512e486e92c902a30f62fec1f89e09",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2014-12-05T21:00:10Z",
    "title_canon_sha256": "78f186acfd7d18c6c0f7ca2af22c2aac5c97167db58bf31d6229ab6fcc3c5e4f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1412.2138",
    "kind": "arxiv",
    "version": 2
  }
}