Pith Number

pith:6ZAPBWYF

pith:2021:6ZAPBWYFJWKVSGV2FPSCKMJFQS

not attested not anchored not stored refs pending

A buyer's guide to the Hubble Constant

Ofer Lahav (UCL), Pablo Lemos (UCL, Paul Shah (UCL), Sussex U.)

arxiv:2109.01161 v2 · 2021-09-02 · 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{6ZAPBWYFJWKVSGV2FPSCKMJFQS}

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.

Cited by

18 papers in Pith

The Hubble tension: A decade review

Resolving the Hubble Tension in the Early Dark Energy Framework with JWST and DESI Data

Measurements of the Angular Homogeneity Scale from DESI DR1

Dissipative Cosmology and the Nature of Dark Energy: Insights from Bulk Viscosity with DESI DR2 observations

Intertwined Constraints in Extended Cosmologies: Dark Energy, Curvature, Neutrinos, and Inflation

Receipt and verification

First computed	2026-07-05T03:40:44.198254Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f640f0db054d95591aba2be425312584bb9d71078220977d409015c6a4ad8778

Aliases

arxiv: 2109.01161 · arxiv_version: 2109.01161v2 · doi: 10.48550/arxiv.2109.01161 · pith_short_12: 6ZAPBWYFJWKV · pith_short_16: 6ZAPBWYFJWKVSGV2 · pith_short_8: 6ZAPBWYF

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/6ZAPBWYFJWKVSGV2FPSCKMJFQS \
  | 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: f640f0db054d95591aba2be425312584bb9d71078220977d409015c6a4ad8778

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "382209b62f2fc98737191c4129be26697d5513a5d378daeaf7d3ffe244ba5792",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2021-09-02T18:09:34Z",
    "title_canon_sha256": "baee362a01a01915353fc897481ff987e799a087c08c90fa12977f8708a8934d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2109.01161",
    "kind": "arxiv",
    "version": 2
  }
}