Pith Number

pith:CEV32D22

pith:2011:CEV32D22F3TUAGHG3V4EMA6HXF

not attested not anchored not stored refs pending

Optimum frequency band for radio polarisation observations

Rainer Beck, Tigran G. Arshakian

arxiv:1101.2631 v5 · 2011-01-13 · 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{CEV32D22F3TUAGHG3V4EMA6HXF}

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	2026-05-18T02:03:40.288096Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

112bbd0f5a2ee74018e6dd784603c7b9490d9e47bb4efd75eaae66238d3b3eaa

Aliases

arxiv: 1101.2631 · arxiv_version: 1101.2631v5 · doi: 10.48550/arxiv.1101.2631 · pith_short_12: CEV32D22F3TU · pith_short_16: CEV32D22F3TUAGHG · pith_short_8: CEV32D22

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/CEV32D22F3TUAGHG3V4EMA6HXF \
  | 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: 112bbd0f5a2ee74018e6dd784603c7b9490d9e47bb4efd75eaae66238d3b3eaa

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "61d2d3f0d0216e57417b0b3dceebcfde3c1fdee0f37d1e373d7c684021f58ea1",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2011-01-13T18:29:18Z",
    "title_canon_sha256": "53c3666c870c02eebad7a5c467bfd70a7f4855453d6cfe78111a3ad5b9fd3baf"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1101.2631",
    "kind": "arxiv",
    "version": 5
  }
}