Pith Number

pith:KUIFDWTI

pith:2004:KUIFDWTIOA4NS4EEIHC5GUTRZU

not attested not anchored not stored refs pending

First measurements of the polarization of the cosmic microwave background radiation at small angular scales from CAPMAP

B. Winstein, C. Bischoff, D. Barkats, D. Samtleben, J. J. McMahon, J. O. Gundersen, K. Vanderlinde, L. Fitzpatrick, L. Hyatt, M. M. Hedman, P. Farese, S. T. Staggs, T. Gaier

arxiv:astro-ph/0409380 v3 · 2004-09-15 · 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{KUIFDWTIOA4NS4EEIHC5GUTRZU}

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	2026-05-18T04:22:21.061271Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

551051da687038d9708441c5d35271cd08d2dbe2e13ab27b85ee6ab0b2296368

Aliases

arxiv: astro-ph/0409380 · arxiv_version: astro-ph/0409380v3 · doi: 10.48550/arxiv.astro-ph/0409380 · pith_short_12: KUIFDWTIOA4N · pith_short_16: KUIFDWTIOA4NS4EE · pith_short_8: KUIFDWTI

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/KUIFDWTIOA4NS4EEIHC5GUTRZU \
  | 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: 551051da687038d9708441c5d35271cd08d2dbe2e13ab27b85ee6ab0b2296368

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "eef06a1e082c37fb04426afbff386212856da6df7de2047727ef801601d17cef",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2004-09-15T19:36:57Z",
    "title_canon_sha256": "c45b92c6d059b8e385f5bc437d6364d3017a105559a4e961b5ea43529cf8c850"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0409380",
    "kind": "arxiv",
    "version": 3
  }
}