Pith Number

pith:U3GUJVLE

pith:2001:U3GUJVLEDTQEJY4O4HZ7JY24HY

not attested not anchored not stored refs pending

The Trispectrum of the 4 Year COBE-DMR data

A. J. Banday, K. M. Gorski, M. Kunz, P. G. Castro, P. G. Ferreira

arxiv:astro-ph/0111250 v2 · 2001-11-13 · astro-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{U3GUJVLEDTQEJY4O4HZ7JY24HY}

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	2026-07-04T16:24:27.322155Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a6cd44d5641ce044e38ee1f3f4e35c3e2f9fb9cbdcffdcf0d956798298e004cc

Aliases

arxiv: astro-ph/0111250 · arxiv_version: astro-ph/0111250v2 · doi: 10.48550/arxiv.astro-ph/0111250 · pith_short_12: U3GUJVLEDTQE · pith_short_16: U3GUJVLEDTQEJY4O · pith_short_8: U3GUJVLE

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/U3GUJVLEDTQEJY4O4HZ7JY24HY \
  | 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: a6cd44d5641ce044e38ee1f3f4e35c3e2f9fb9cbdcffdcf0d956798298e004cc

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a620c4b4b610d22baa0ac9620d2b0f1478f92ae1cbf508856989f3468125bcdb",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2001-11-13T18:59:31Z",
    "title_canon_sha256": "03b3ac87862c5c7078f2521dfd37545737ea7af9c6edef8b4a9168929c3f8e66"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0111250",
    "kind": "arxiv",
    "version": 2
  }
}