Pith Number

pith:P5H475O2

pith:2021:P5H475O2KS4AL3T6DAEESJQZBZ

not attested not anchored not stored refs pending

Testing the $\Lambda$CDM paradigm with growth rate data and machine learning

Alessandro Melchiorri, Rub\'en Arjona, Savvas Nesseris

arxiv:2107.04343 v1 · 2021-07-09 · 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{P5H475O2KS4AL3T6DAEESJQZBZ}

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

1 paper in Pith

Reconstructing Cosmic History with Machine Learning: A Study Using CART, MLPR, and SVR

Receipt and verification

First computed	2026-07-05T04:29:25.258473Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7f4fcff5da54b805ee7e18084926190e45b4f08f2d6da6760dfc05d4692597bf

Aliases

arxiv: 2107.04343 · arxiv_version: 2107.04343v1 · doi: 10.48550/arxiv.2107.04343 · pith_short_12: P5H475O2KS4A · pith_short_16: P5H475O2KS4AL3T6 · pith_short_8: P5H475O2

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/P5H475O2KS4AL3T6DAEESJQZBZ \
  | 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: 7f4fcff5da54b805ee7e18084926190e45b4f08f2d6da6760dfc05d4692597bf

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "17d96b1c2ca849eba98396f9dd7f636498a6f7575df14d6da00410fa7d368b20",
    "cross_cats_sorted": [
      "gr-qc"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2021-07-09T10:26:27Z",
    "title_canon_sha256": "89e9d2fd30e87a308b6a6120b509d5fe7279fe0615d4e8d17c710e725fab6a74"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2107.04343",
    "kind": "arxiv",
    "version": 1
  }
}