Pith Number

pith:PXQ7D3KJ

pith:2021:PXQ7D3KJSESI7FBM665327YWZZ

not attested not anchored not stored refs pending

Is Cosmological Tuning Fine or Coarse?

Daniel Andr\'es D\'iaz-Pach\'on, Ola H\"ossjer, Robert J. Marks II

arxiv:2104.05400 v2 · 2021-03-05 · physics.gen-ph · math.PR

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{PXQ7D3KJSESI7FBM665327YWZZ}

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	2026-07-05T02:57:52.888223Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7de1f1ed4991248f942cf7bbbd7f16ce40be6c6bed46977900f4c68f97918e57

Aliases

arxiv: 2104.05400 · arxiv_version: 2104.05400v2 · doi: 10.48550/arxiv.2104.05400 · pith_short_12: PXQ7D3KJSESI · pith_short_16: PXQ7D3KJSESI7FBM · pith_short_8: PXQ7D3KJ

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/PXQ7D3KJSESI7FBM665327YWZZ \
  | 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: 7de1f1ed4991248f942cf7bbbd7f16ce40be6c6bed46977900f4c68f97918e57

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "80038e846c345678bb42d3cca83ef3c84819a6a6aa9f667de9542a8129945919",
    "cross_cats_sorted": [
      "math.PR"
    ],
    "license": "http://creativecommons.org/licenses/by-sa/4.0/",
    "primary_cat": "physics.gen-ph",
    "submitted_at": "2021-03-05T20:29:54Z",
    "title_canon_sha256": "fea2260d89d92d8c0b25248341bb69687ba27e330d2b8f1c8ef86e585933c2c8"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2104.05400",
    "kind": "arxiv",
    "version": 2
  }
}