Pith Number

pith:3A2Q6GIW

pith:2022:3A2Q6GIWQTOBYKCYOI4FK2TP2F

not attested not anchored not stored refs pending

Cosmic Birefringence from Planck Public Release 4

A. J. Banday, D. Scott, E. Komatsu, E. Mart\'inez-Gonz\'alez, H. K. Eriksen, I. K. Wehus, J. R. Eskilt, K. M. G\'orski, M. Tristram, P. Diego-Palazuelos, P. Vielva, R. B. Barreiro, R. Keskitalo, R. M. Sullivan, Y. Minami

arxiv:2203.04830 v1 · 2022-03-09 · 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{3A2Q6GIWQTOBYKCYOI4FK2TP2F}

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	2026-07-05T04:03:22.873892Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d8350f191684dc1c28587238556a6fd14799d3820c2b0035eea8ffa2d3ea4eb2

Aliases

arxiv: 2203.04830 · arxiv_version: 2203.04830v1 · doi: 10.48550/arxiv.2203.04830 · pith_short_12: 3A2Q6GIWQTOB · pith_short_16: 3A2Q6GIWQTOBYKCY · pith_short_8: 3A2Q6GIW

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/3A2Q6GIWQTOBYKCYOI4FK2TP2F \
  | 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: d8350f191684dc1c28587238556a6fd14799d3820c2b0035eea8ffa2d3ea4eb2

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "693f5421b469b7646277e26e2360a32495387062d35c5df99396c750aa68e47d",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2022-03-09T16:03:57Z",
    "title_canon_sha256": "6639f41a9a052aa89180caa38f045d0338efef44dad678ee7c6ed94db3522a10"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2203.04830",
    "kind": "arxiv",
    "version": 1
  }
}