Pith Number

pith:NLQ6M6MS

pith:2025:NLQ6M6MSLIIACQ2MO4AQPO7AK7

not attested not anchored not stored refs pending

Planck PR4 (NPIPE) map-space cosmic birefringence

Arefe Abghari, Douglas Scott, Lukas Tobias Hergt, Patricia Diego-Palazuelos, Raelyn Marguerite Sullivan

arxiv:2502.07654 v1 · 2025-02-11 · 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{NLQ6M6MSLIIACQ2MO4AQPO7AK7}

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

2 papers in Pith

On the potential of pseudo-scalar dark energy

Cosmic Birefringence from the Atacama Cosmology Telescope Data Release 6

Receipt and verification

First computed	2026-07-05T10:12:40.617053Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6ae1e679925a1001434c770107bbe057f8c69b0928854f1b60cf7ee00bd13d38

Aliases

arxiv: 2502.07654 · arxiv_version: 2502.07654v1 · doi: 10.48550/arxiv.2502.07654 · pith_short_12: NLQ6M6MSLIIA · pith_short_16: NLQ6M6MSLIIACQ2M · pith_short_8: NLQ6M6MS

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/NLQ6M6MSLIIACQ2MO4AQPO7AK7 \
  | 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: 6ae1e679925a1001434c770107bbe057f8c69b0928854f1b60cf7ee00bd13d38

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0310e845d04ce0d937d6324b142cd9b94bb2b588083a9e0505285151d5b4228e",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by-sa/4.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2025-02-11T15:43:29Z",
    "title_canon_sha256": "a9020c8c17ba058cadf4d75bd5797ba7343445941472efffdb9527d4fe34c425"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2502.07654",
    "kind": "arxiv",
    "version": 1
  }
}