Pith Number

pith:KZSGDUTV

pith:2009:KZSGDUTVGLNM273EU47FRRHUNN

not attested not anchored not stored refs pending

CMB Polarization Systematics, Cosmological Birefringence and the Gravitational Waves Background

Alessandro Melchiorri, Francesco Piacentini, Gianluca Polenta, Giulia Gubitosi, Grazia De Troia, Luca Pagano, Paolo De Bernardis, Paolo Natoli, Silvia Masi

arxiv:0905.1651 v3 · 2009-05-11 · 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{KZSGDUTVGLNM273EU47FRRHUNN}

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	2026-07-04T15:48:38.219117Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

566461d27532dacd7f64a73e58c4f46b7271708d990beca6c5045747ae398d2d

Aliases

arxiv: 0905.1651 · arxiv_version: 0905.1651v3 · doi: 10.48550/arxiv.0905.1651 · pith_short_12: KZSGDUTVGLNM · pith_short_16: KZSGDUTVGLNM273E · pith_short_8: KZSGDUTV

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/KZSGDUTVGLNM273EU47FRRHUNN \
  | 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: 566461d27532dacd7f64a73e58c4f46b7271708d990beca6c5045747ae398d2d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "dd3c81b64fb77b7d1108ecc3588f423f08e47794046471622facd023d45d5f5c",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2009-05-11T16:13:42Z",
    "title_canon_sha256": "74ea179bc1dac127c07a938173a555a9b99907d78b96fe21a99b6fe18657ef8e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0905.1651",
    "kind": "arxiv",
    "version": 3
  }
}