Pith Number

pith:EXBQNQ5Q

pith:2012:EXBQNQ5QB3QWQMIATMOSZIY5QB

not attested not anchored not stored refs pending

First CMB Constraints on Direction-Dependent Cosmological Birefringence from WMAP-7

Christopher M. Hirata, Duncan Hanson, Marc Kamionkowski, Vera Gluscevic

arxiv:1206.5546 v2 · 2012-06-24 · astro-ph.CO · physics.data-an

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{EXBQNQ5QB3QWQMIATMOSZIY5QB}

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.

Cited by

1 paper in Pith

CMB-S4 Science Case, Reference Design, and Project Plan

Receipt and verification

First computed	2026-05-18T03:22:39.823094Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

25c306c3b00ee16831009b1d2ca31d80533b1b2960148b6491c765e52965f6e4

Aliases

arxiv: 1206.5546 · arxiv_version: 1206.5546v2 · doi: 10.48550/arxiv.1206.5546 · pith_short_12: EXBQNQ5QB3QW · pith_short_16: EXBQNQ5QB3QWQMIA · pith_short_8: EXBQNQ5Q

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/EXBQNQ5QB3QWQMIATMOSZIY5QB \
  | 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: 25c306c3b00ee16831009b1d2ca31d80533b1b2960148b6491c765e52965f6e4

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "610152d91bfcd10fbb2d8981fc4b9b0728cff582634d0e4dbdfba47c5f999f8b",
    "cross_cats_sorted": [
      "physics.data-an"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2012-06-24T22:18:29Z",
    "title_canon_sha256": "7cfb97296a624914002bb380760b401cd281853d14c81b37050b6f660d1e2081"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1206.5546",
    "kind": "arxiv",
    "version": 2
  }
}