Pith Number

pith:ZHQ5YERD

pith:2009:ZHQ5YERDBTQC2RIDLXB5HQRFTY

not attested not anchored not stored refs pending

The effect of asymmetric beams in the Wilkinson Microwave Anisotropy Probe experiment

H. K. Eriksen, Ingunn Kathrine Wehus, Lotty Ackerman, Nicolaas E. Groeneboom

arxiv:0904.3998 v2 · 2009-04-26 · 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{ZHQ5YERDBTQC2RIDLXB5HQRFTY}

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	2026-05-18T04:03:20.388068Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c9e1dc12230ce02d45035dc3d3c2259e14abdca81d30e01ce94e5f60c12747fe

Aliases

arxiv: 0904.3998 · arxiv_version: 0904.3998v2 · doi: 10.48550/arxiv.0904.3998 · pith_short_12: ZHQ5YERDBTQC · pith_short_16: ZHQ5YERDBTQC2RID · pith_short_8: ZHQ5YERD

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/ZHQ5YERDBTQC2RIDLXB5HQRFTY \
  | 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: c9e1dc12230ce02d45035dc3d3c2259e14abdca81d30e01ce94e5f60c12747fe

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b221f2f0434130d98aa2c773d4559d7f6064d3d162b736e7ba6da23495dfcc95",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2009-04-26T00:41:34Z",
    "title_canon_sha256": "ff121849ad3c8e0d9b8fed160351add37c27690962e5d13bf334ca3662b7a736"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0904.3998",
    "kind": "arxiv",
    "version": 2
  }
}