Pith Number

pith:2A67UJ5J

pith:2018:2A67UJ5JLBFDBAYU25ZPLPQFZV

not attested not anchored not stored refs pending

New Physics in the Rayleigh-Jeans Tail of the CMB

Alfredo Urbano, Josef Pradler, Joshua T. Ruderman, Maxim Pospelov

arxiv:1803.07048 v2 · 2018-03-19 · 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{2A67UJ5JLBFDBAYU25ZPLPQFZV}

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	2026-05-18T00:05:50.881227Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d03dfa27a9584a308314d772f5be05cd75797afb86d7c8b0ccc2adb8a720374a

Aliases

arxiv: 1803.07048 · arxiv_version: 1803.07048v2 · doi: 10.48550/arxiv.1803.07048 · pith_short_12: 2A67UJ5JLBFD · pith_short_16: 2A67UJ5JLBFDBAYU · pith_short_8: 2A67UJ5J

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/2A67UJ5JLBFDBAYU25ZPLPQFZV \
  | 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: d03dfa27a9584a308314d772f5be05cd75797afb86d7c8b0ccc2adb8a720374a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5b864ce43bf858921a0e50206bd8112154177e13beeddde3019f295a9e4b42c7",
    "cross_cats_sorted": [
      "astro-ph.CO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "hep-ph",
    "submitted_at": "2018-03-19T17:23:03Z",
    "title_canon_sha256": "871506e8c1baa6653978dcc9888acac8f300fbb66ac60d396ca8e8cf24eddb39"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1803.07048",
    "kind": "arxiv",
    "version": 2
  }
}