Pith Number

pith:7XEBFKSK

pith:2002:7XEBFKSKFOO7ZOC46I6F6IKBVU

not attested not anchored not stored refs pending

New Limits on the Polarized Anisotropy of the Cosmic Microwave Background at Subdegree Angular Scales

B. Winstein, D. Barkats, J. J. McMahon, J. O. Gundersen, M. M. Hedman, S. T. Staggs

arxiv:astro-ph/0204438 v1 · 2002-04-25 · 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{7XEBFKSKFOO7ZOC46I6F6IKBVU}

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	2026-07-04T16:29:55.279963Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

fdc812aa4a2b9dfcb85cf23c5f2141ad093ada7e61564e6c7b65eec74d323835

Aliases

arxiv: astro-ph/0204438 · arxiv_version: astro-ph/0204438v1 · doi: 10.48550/arxiv.astro-ph/0204438 · pith_short_12: 7XEBFKSKFOO7 · pith_short_16: 7XEBFKSKFOO7ZOC4 · pith_short_8: 7XEBFKSK

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/7XEBFKSKFOO7ZOC46I6F6IKBVU \
  | 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: fdc812aa4a2b9dfcb85cf23c5f2141ad093ada7e61564e6c7b65eec74d323835

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "66169c894d3173928de5a2f482663c9dca2b2d82fec297b5057b546ec949c95b",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2002-04-25T22:01:30Z",
    "title_canon_sha256": "62f8042c0e9f3e341d632784d1da8dea5f7a73a9fa39e40ba324294f46f4dd74"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0204438",
    "kind": "arxiv",
    "version": 1
  }
}