Pith Number

pith:ZKQUI642

pith:2021:ZKQUI642U7Z45U7RXSAVBLLEKL

not attested not anchored not stored refs pending

Cosmic Birefringence Triggered by Dark Matter Domination

Fuminobu Takahashi, Masaki Yamada, Shota Nakagawa

arxiv:2103.08153 v1 · 2021-03-15 · hep-ph · 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{ZKQUI642U7Z45U7RXSAVBLLEKL}

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

Planck PR4 (NPIPE) map-space cosmic birefringence

Receipt and verification

First computed	2026-07-05T03:30:30.544956Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

caa1447b9aa7f3ced3f1bc8150ad6452c554fb85f23b49842e6d7ec16b459509

Aliases

arxiv: 2103.08153 · arxiv_version: 2103.08153v1 · doi: 10.48550/arxiv.2103.08153 · pith_short_12: ZKQUI642U7Z4 · pith_short_16: ZKQUI642U7Z45U7R · pith_short_8: ZKQUI642

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/ZKQUI642U7Z45U7RXSAVBLLEKL \
  | 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: caa1447b9aa7f3ced3f1bc8150ad6452c554fb85f23b49842e6d7ec16b459509

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "663ba9432d37319a4c673ef1258f6ca4e144b709affd92915fbd52c2f11702f1",
    "cross_cats_sorted": [
      "astro-ph.CO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "hep-ph",
    "submitted_at": "2021-03-15T06:22:59Z",
    "title_canon_sha256": "1f8143d919438f590152bc6d576431a4a05ff46802bf9b462ba7c7bb8306fe1d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2103.08153",
    "kind": "arxiv",
    "version": 1
  }
}