Pith Number

pith:7FA4XEWG

pith:2026:7FA4XEWGLDSBVFIEU7WTLPWR6H

not attested not anchored not stored refs pending

Robust CMB polarisation mapmaking with a rotating half-wave plate

Josquin Errard, Radek Stompor, Simon Biquard, Wuhyun Sohn

arxiv:2606.31720 v1 · 2026-06-30 · astro-ph.IM · 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{7FA4XEWGLDSBVFIEU7WTLPWR6H}

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	2026-07-01T01:18:12.743323Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f941cb92c658e41a9504a7ed35bed1f1e45606d4ac053334602efedb34877732

Aliases

arxiv: 2606.31720 · arxiv_version: 2606.31720v1 · doi: 10.48550/arxiv.2606.31720 · pith_short_12: 7FA4XEWGLDSB · pith_short_16: 7FA4XEWGLDSBVFIE · pith_short_8: 7FA4XEWG

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/7FA4XEWGLDSBVFIEU7WTLPWR6H \
  | 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: f941cb92c658e41a9504a7ed35bed1f1e45606d4ac053334602efedb34877732

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "18409ac14555f448430c385287dc63531a1ad878829753e4b0f21985e4c89cab",
    "cross_cats_sorted": [
      "astro-ph.CO"
    ],
    "license": "http://creativecommons.org/licenses/by-nc-sa/4.0/",
    "primary_cat": "astro-ph.IM",
    "submitted_at": "2026-06-30T14:23:17Z",
    "title_canon_sha256": "a24193a6245446a0e20be63253ce742cc852eb2618d9148f1ae88bb3962b9009"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2606.31720",
    "kind": "arxiv",
    "version": 1
  }
}