Pith Number

pith:X6AZTIMY

pith:2022:X6AZTIMYJCIMEGM4I2RFKHQGQ4

not attested not anchored not stored refs pending

Planck constraints on cross-correlations between anisotropic cosmic birefringence and CMB polarization

Alessandro Gruppuso, Luca Pagano, Marco Bortolami, Matteo Billi, Paolo Natoli

arxiv:2206.01635 v2 · 2022-06-03 · 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{X6AZTIMYJCIMEGM4I2RFKHQGQ4}

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	2026-07-05T05:02:01.186917Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

bf8199a1984890c2199c46a2551e06872d6fd2209420f47d3a5b5a0f8844312b

Aliases

arxiv: 2206.01635 · arxiv_version: 2206.01635v2 · doi: 10.48550/arxiv.2206.01635 · pith_short_12: X6AZTIMYJCIM · pith_short_16: X6AZTIMYJCIMEGM4 · pith_short_8: X6AZTIMY

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/X6AZTIMYJCIMEGM4I2RFKHQGQ4 \
  | 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: bf8199a1984890c2199c46a2551e06872d6fd2209420f47d3a5b5a0f8844312b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b1e3fea0ad5a3af4b14a7e6c31ecf2659baed95b27fd5c30bd97360085cbc4f1",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2022-06-03T15:24:23Z",
    "title_canon_sha256": "fc7998f83782bb5f471a88cbd2216232a45042371a7591f8e9d36cf451e7ca81"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2206.01635",
    "kind": "arxiv",
    "version": 2
  }
}