Pith Number

pith:FMS6XEHO

pith:2019:FMS6XEHOHR77TFQLN3QMST23JK

not attested not anchored not stored refs pending

Updated fundamental constant constraints from Planck 2018 data and possible relations to the Hubble tension

Jens Chluba, Luke Hart

arxiv:1912.03986 v2 · 2019-12-09 · 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{FMS6XEHOHR77TFQLN3QMST23JK}

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

4 papers in Pith

The Hubble tension: A decade review

Running into tension: primordial black holes from ultra-slow-roll inflation, spectral running, and the Hubble tension

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

Geometric Constraints on the Pre-Recombination Expansion History from the Hubble Tension

Receipt and verification

First computed	2026-07-05T01:05:00.623157Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2b25eb90ee3c7ff9960b6ee0c94f5b4a93c3ade6c56a7f679165f662a8a2db45

Aliases

arxiv: 1912.03986 · arxiv_version: 1912.03986v2 · doi: 10.48550/arxiv.1912.03986 · pith_short_12: FMS6XEHOHR77 · pith_short_16: FMS6XEHOHR77TFQL · pith_short_8: FMS6XEHO

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/FMS6XEHOHR77TFQLN3QMST23JK \
  | 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: 2b25eb90ee3c7ff9960b6ee0c94f5b4a93c3ade6c56a7f679165f662a8a2db45

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c4ba5240aa3c9e77eb0307ccfb9b9ba1f3f73e087d48744f84dec53b1ab50995",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2019-12-09T12:08:45Z",
    "title_canon_sha256": "aee5d6479c2f61de340fc2191a1a94a5152ac0949f018933666d6747f1c39cb6"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1912.03986",
    "kind": "arxiv",
    "version": 2
  }
}