Pith Number

pith:QLPGFNXW

pith:2024:QLPGFNXWIDGZXH5BC6YO7PDC27

not attested not anchored not stored refs pending

On Cepheid distances in the $H_0$ measurement

Richard I. Anderson

arxiv:2403.02801 v1 · 2024-03-05 · astro-ph.SR · astro-ph.GA · astro-ph.IM

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{QLPGFNXWIDGZXH5BC6YO7PDC27}

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	2026-07-05T07:52:22.673674Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

82de62b6f640cd9b9fa117b0efbc62d7fb7845630b4c758669cff7c382c10d99

Aliases

arxiv: 2403.02801 · arxiv_version: 2403.02801v1 · doi: 10.48550/arxiv.2403.02801 · pith_short_12: QLPGFNXWIDGZ · pith_short_16: QLPGFNXWIDGZXH5B · pith_short_8: QLPGFNXW

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/QLPGFNXWIDGZXH5BC6YO7PDC27 \
  | 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: 82de62b6f640cd9b9fa117b0efbc62d7fb7845630b4c758669cff7c382c10d99

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b5c43b8a5081a8a28abfc709614413bb14d3506659723ab6f644a6fe0a775bf7",
    "cross_cats_sorted": [
      "astro-ph.GA",
      "astro-ph.IM"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2024-03-05T09:17:01Z",
    "title_canon_sha256": "9d54e0b1d65b2d1c66bc052fd2a5e15fe100c8f17fbe989323ce3a1a3625dde5"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2403.02801",
    "kind": "arxiv",
    "version": 1
  }
}