Pith Number

pith:63WXWKAU

pith:2025:63WXWKAUNAS2JV5DV3RLVCUXLS

not attested not anchored not stored refs pending

Bianchi Type I Model Cannot Explain the Observed CMB Angular Acoustic Scale Directional Variation

Boris Hoi-Lun Ng, Ming-chung Chu

arxiv:2508.05185 v1 · 2025-08-07 · 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{63WXWKAUNAS2JV5DV3RLVCUXLS}

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	2026-07-05T11:50:08.472217Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f6ed7b28146825a4d7a3aee2ba8a975c8344c835216622b1f45f5516f04cadbe

Aliases

arxiv: 2508.05185 · arxiv_version: 2508.05185v1 · doi: 10.48550/arxiv.2508.05185 · pith_short_12: 63WXWKAUNAS2 · pith_short_16: 63WXWKAUNAS2JV5D · pith_short_8: 63WXWKAU

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/63WXWKAUNAS2JV5DV3RLVCUXLS \
  | 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: f6ed7b28146825a4d7a3aee2ba8a975c8344c835216622b1f45f5516f04cadbe

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ca9c3a042ee524be4b8cad91a0f38c5dbebc55967b1d6f7ae8fe59f82b9e9522",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2025-08-07T09:21:01Z",
    "title_canon_sha256": "6ee6b325a57154b28a9f2eb0245947478f6a6aa634ccd3bfc9b9f4aa55db476f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2508.05185",
    "kind": "arxiv",
    "version": 1
  }
}