Pith Number

pith:K4RW77QD

pith:2017:K4RW77QDNH6XIRDS2YOJUUSUM7

not attested not anchored not stored refs pending

On Cepheid Distance Scale Bias due to Stellar Companions and Cluster Populations

Adam G. Riess, Richard I. Anderson

arxiv:1712.01065 v2 · 2017-12-04 · 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{K4RW77QDNH6XIRDS2YOJUUSUM7}

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	2026-05-18T00:11:06.701203Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

57236ffe0369fd744472d61c9a525467c9d0f8e0aa7aa51a23fc7bcb420c85cd

Aliases

arxiv: 1712.01065 · arxiv_version: 1712.01065v2 · doi: 10.48550/arxiv.1712.01065 · pith_short_12: K4RW77QDNH6X · pith_short_16: K4RW77QDNH6XIRDS · pith_short_8: K4RW77QD

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/K4RW77QDNH6XIRDS2YOJUUSUM7 \
  | 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: 57236ffe0369fd744472d61c9a525467c9d0f8e0aa7aa51a23fc7bcb420c85cd

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "954f2496f4307f123de0d82ea33997de2af726702094e65c980c164bf079211d",
    "cross_cats_sorted": [
      "astro-ph.GA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2017-12-04T13:35:16Z",
    "title_canon_sha256": "37a3bee9f2da9786366861f21a7db041349cf9efe348f9f8ef82f50653d8762d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1712.01065",
    "kind": "arxiv",
    "version": 2
  }
}