Pith Number

pith:XZHZKLD4

pith:2009:XZHZKLD4DH4ZROG3YPTVASHQX6

not attested not anchored not stored refs pending

Significant foreground unrelated non-acoustic anisotropy on the one degree scale in WMAP 5-year observations

Bart Wakker, Bi-Zhu Jiang, Richard Lieu, Shuang-Nan Zhang

arxiv:0904.2513 v3 · 2009-04-16 · 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{XZHZKLD4DH4ZROG3YPTVASHQX6}

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	2026-05-18T02:13:59.852987Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

be4f952c7c19f998b8dbc3e75048f0bfaf91bcd2cbb85b6c2fda2509be50a6ca

Aliases

arxiv: 0904.2513 · arxiv_version: 0904.2513v3 · doi: 10.48550/arxiv.0904.2513 · pith_short_12: XZHZKLD4DH4Z · pith_short_16: XZHZKLD4DH4ZROG3 · pith_short_8: XZHZKLD4

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/XZHZKLD4DH4ZROG3YPTVASHQX6 \
  | 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: be4f952c7c19f998b8dbc3e75048f0bfaf91bcd2cbb85b6c2fda2509be50a6ca

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "fbef2f1fc9d0a32d29750562d016f2a9ea4758a3126fd811f97022c69b50b34d",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/3.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2009-04-16T15:07:23Z",
    "title_canon_sha256": "98e60a39f38c41add97f1c246ec8edbe006b627954ec6c1631725a5af65b9917"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0904.2513",
    "kind": "arxiv",
    "version": 3
  }
}