Pith Number

pith:PEX3LD36

pith:2009:PEX3LD36XJLUDSQWTKVQWZSECI

not attested not anchored not stored refs pending

CMB Polarization and Temperature Power Spectra Estimation using Linear Combination of WMAP 5-year Maps

Jacques Delabrouille, Pankaj Jain, Pramoda Kumar Samal, Rajib Saha, Simon Prunet, Tarun Souradeep

arxiv:0903.3634 v1 · 2009-03-21 · 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{PEX3LD36XJLUDSQWTKVQWZSECI}

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	2026-05-18T04:29:15.752542Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

792fb58f7eba5741ca169aab0b6644120f7033e8fec8d55d775558bf0708be6f

Aliases

arxiv: 0903.3634 · arxiv_version: 0903.3634v1 · doi: 10.48550/arxiv.0903.3634 · pith_short_12: PEX3LD36XJLU · pith_short_16: PEX3LD36XJLUDSQW · pith_short_8: PEX3LD36

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/PEX3LD36XJLUDSQWTKVQWZSECI \
  | 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: 792fb58f7eba5741ca169aab0b6644120f7033e8fec8d55d775558bf0708be6f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1e23bc2c6b7d39259d20dda55c6902a34167576628d89cd955de1df90ca985c7",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2009-03-21T03:39:21Z",
    "title_canon_sha256": "63ce1fb9f21c410bbf979dbb26316e31041313937159b4c67463fe31f879baee"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0903.3634",
    "kind": "arxiv",
    "version": 1
  }
}