Pith Number

pith:4F5XD3VO

pith:2018:4F5XD3VOHBTUXEYX3DYAWXPPXP

not attested not anchored not stored refs pending

$H_0$ Tension: Response to Riess et al arXiv:1810.03526

Durham University, England), Lucy Hogarth, Nigel Metcalfe (Physics Department, Tom Shanks

arxiv:1810.07628 v1 · 2018-10-17 · 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{4F5XD3VOHBTUXEYX3DYAWXPPXP}

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	2026-05-18T00:02:55.590647Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e17b71eeae38674b9317d8f00b5defbbf0895109ed04981c51d8a040ef10afa2

Aliases

arxiv: 1810.07628 · arxiv_version: 1810.07628v1 · doi: 10.48550/arxiv.1810.07628 · pith_short_12: 4F5XD3VOHBTU · pith_short_16: 4F5XD3VOHBTUXEYX · pith_short_8: 4F5XD3VO

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/4F5XD3VOHBTUXEYX3DYAWXPPXP \
  | 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: e17b71eeae38674b9317d8f00b5defbbf0895109ed04981c51d8a040ef10afa2

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "36a46b8ab7f7228ef1e74999c686686fd183958526e956f0f520b1d144a04d4f",
    "cross_cats_sorted": [
      "astro-ph.GA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2018-10-17T15:46:12Z",
    "title_canon_sha256": "29b2e8a5f8e22f2209aa8871bcc350b13aeffc2831b76d76f51a88d222992613"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1810.07628",
    "kind": "arxiv",
    "version": 1
  }
}