Pith Number

pith:XZBAOSIJ

pith:2026:XZBAOSIJYLUPI3TAC4UGGA73TB

not attested not anchored not stored refs pending

Skewness in the Hellings-Downs curve

Keitaro Takahashi, Ryosuke Fujimoto

arxiv:2602.01108 v2 · 2026-02-01 · 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{XZBAOSIJYLUPI3TAC4UGGA73TB}

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	2026-06-03T01:05:48.357274Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

be42074909c2e8f46e6017286303fb987499b8b6baf8ec0afe017184dddd7d92

Aliases

arxiv: 2602.01108 · arxiv_version: 2602.01108v2 · doi: 10.48550/arxiv.2602.01108 · pith_short_12: XZBAOSIJYLUP · pith_short_16: XZBAOSIJYLUPI3TA · pith_short_8: XZBAOSIJ

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/XZBAOSIJYLUPI3TAC4UGGA73TB \
  | 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: be42074909c2e8f46e6017286303fb987499b8b6baf8ec0afe017184dddd7d92

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8376e71442c15fe98d40a05e1f255e6e6e719d5a904958288f2b1e4ab2f51ebb",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2026-02-01T09:06:14Z",
    "title_canon_sha256": "293ac32ac6c523e72e8b71cb2aad6da9b37dd6846d0b42c87c4d91d28446007c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2602.01108",
    "kind": "arxiv",
    "version": 2
  }
}