Pith Number

pith:SFY2675N

pith:2021:SFY2675NFMAONFAG7MJOS2UGWK

not attested not anchored not stored refs pending

The Hubble Constant from Infrared Surface Brightness Fluctuation Distances

Chung-Pei Ma, Jenny E. Greene, John P. Blakeslee, Joseph B. Jensen, Peter A. Milne

arxiv:2101.02221 v2 · 2021-01-06 · astro-ph.CO · gr-qc

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{SFY2675NFMAONFAG7MJOS2UGWK}

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

10 papers in Pith

The Hubble tension: A decade review

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

Redshift Duality with Pantheon+SH0ES in a Planck-anchored Flat $\Lambda$CDM Framework: Implications for Hubble Tension and Observational Inference

Cosmological Viability of Exponential Infrared $f(T)$ Gravity

Receipt and verification

First computed	2026-07-05T02:34:46.287439Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

9171af7fad2b00e69406fb12e96a86b29aa288bab713b1c14d12239304c064fc

Aliases

arxiv: 2101.02221 · arxiv_version: 2101.02221v2 · doi: 10.48550/arxiv.2101.02221 · pith_short_12: SFY2675NFMAO · pith_short_16: SFY2675NFMAONFAG · pith_short_8: SFY2675N

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/SFY2675NFMAONFAG7MJOS2UGWK \
  | 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: 9171af7fad2b00e69406fb12e96a86b29aa288bab713b1c14d12239304c064fc

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ba098c6466ed19998d039c09cf7e59466a91afbbed2d3937ed6ae770bea06ae2",
    "cross_cats_sorted": [
      "gr-qc"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2021-01-06T19:00:06Z",
    "title_canon_sha256": "1c7d49d3d71c707f250d5a1b7118436cc9135585a463e42f411522c67e1deb5d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2101.02221",
    "kind": "arxiv",
    "version": 2
  }
}