Pith Number

pith:QWHC2VRO

pith:2024:QWHC2VROFAQZAQF4YJHNX2J5DJ

not attested not anchored not stored refs pending

Non-parametric reconstruction of the fine structure constant with galaxy clusters

Javier E. Gonzalez, L. R. Cola\c{c}o, Marcelo Ferreira, Rafael C. Nunes, Rodrigo F. L. Holanda

arxiv:2410.21542 v1 · 2024-10-28 · 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{QWHC2VROFAQZAQF4YJHNX2J5DJ}

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	2026-07-05T09:27:29.771203Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

858e2d562e28219040bcc24edbe93d1a7f25fb71226da95b0dd2d4241a2cf83c

Aliases

arxiv: 2410.21542 · arxiv_version: 2410.21542v1 · doi: 10.48550/arxiv.2410.21542 · pith_short_12: QWHC2VROFAQZ · pith_short_16: QWHC2VROFAQZAQF4 · pith_short_8: QWHC2VRO

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/QWHC2VROFAQZAQF4YJHNX2J5DJ \
  | 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: 858e2d562e28219040bcc24edbe93d1a7f25fb71226da95b0dd2d4241a2cf83c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f63c5d8f54589a692e66250fdacfeaf2733cef1165b7e65619392ca58f881afa",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2024-10-28T21:15:07Z",
    "title_canon_sha256": "276af8f9716d28807acd9c79fc6170babbd42db3413d69637f2e4aa084dd9026"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2410.21542",
    "kind": "arxiv",
    "version": 1
  }
}