Pith Number

pith:SQ5D5LDI

pith:2025:SQ5D5LDILSNN46MFL5DD4XKC65

not attested not anchored not stored refs pending

Planck constraints on the scale dependence of isotropic cosmic birefringence

A. Gruppuso, M. Ballardini, P. Natoli, S. Paradiso, S.S. Sirletti

arxiv:2507.16714 v1 · 2025-07-22 · 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{SQ5D5LDILSNN46MFL5DD4XKC65}

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

On the potential of pseudo-scalar dark energy

Receipt and verification

First computed	2026-07-05T11:41:29.729086Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

943a3eac685c9ade79855f463e5d42f752030d955dddb35c0557780fac786b56

Aliases

arxiv: 2507.16714 · arxiv_version: 2507.16714v1 · doi: 10.48550/arxiv.2507.16714 · pith_short_12: SQ5D5LDILSNN · pith_short_16: SQ5D5LDILSNN46MF · pith_short_8: SQ5D5LDI

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/SQ5D5LDILSNN46MFL5DD4XKC65 \
  | 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: 943a3eac685c9ade79855f463e5d42f752030d955dddb35c0557780fac786b56

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7c267d309a2635230dd105bc219cb001df4414fe4f433f3e57602a3f8a21e7ce",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2025-07-22T15:50:28Z",
    "title_canon_sha256": "0256e3a41ade9e4ce7753830f1994f2629a35c42e4a28960c263764b76b462ae"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2507.16714",
    "kind": "arxiv",
    "version": 1
  }
}