Pith Number

pith:WDVA5NUV

pith:2009:WDVA5NUVTXJROAREGX7PHHIDQY

not attested not anchored not stored refs pending

Cosmological Alfv\'en waves in the recent CMB data, and the observational bound on the primordial vector perturbation

Jaiseung Kim, Pavel Naselsky

arxiv:0903.1930 v6 · 2009-03-11 · 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{WDVA5NUVTXJROAREGX7PHHIDQY}

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	2026-05-18T02:35:00.518210Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b0ea0eb6959dd317022435fef39d03862c5b1faa24cdb35b20fe11ece1dffec9

Aliases

arxiv: 0903.1930 · arxiv_version: 0903.1930v6 · doi: 10.48550/arxiv.0903.1930 · pith_short_12: WDVA5NUVTXJR · pith_short_16: WDVA5NUVTXJROARE · pith_short_8: WDVA5NUV

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/WDVA5NUVTXJROAREGX7PHHIDQY \
  | 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: b0ea0eb6959dd317022435fef39d03862c5b1faa24cdb35b20fe11ece1dffec9

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e9742a4b0092bd9e2603494453a9efa3772c5de19d1b1c61fe307628b2b8aa18",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2009-03-11T09:03:00Z",
    "title_canon_sha256": "c8403ca5223ef3df00eb6b3305e29bc35ac7cb06b148ac4629a9423339b05ae4"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0903.1930",
    "kind": "arxiv",
    "version": 6
  }
}