Pith Number

pith:WWOLKFEC

pith:2022:WWOLKFECUD4W2OXWHCKZS7W3D7

not attested not anchored not stored refs pending

Using the cosmological recombination radiation to probe early dark energy and fundamental constant variations

Jens Chluba, Luke Hart

arxiv:2209.12290 v1 · 2022-09-25 · 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{WWOLKFECUD4W2OXWHCKZS7W3D7}

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

Unifying Early and Late Dark Energy: Dynamical Requirements and Obstructions

Receipt and verification

First computed	2026-07-05T05:28:28.941926Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b59cb51482a0f96d3af63895997edb1fdd31015c31df1eca736821950b66a63b

Aliases

arxiv: 2209.12290 · arxiv_version: 2209.12290v1 · doi: 10.48550/arxiv.2209.12290 · pith_short_12: WWOLKFECUD4W · pith_short_16: WWOLKFECUD4W2OXW · pith_short_8: WWOLKFEC

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/WWOLKFECUD4W2OXWHCKZS7W3D7 \
  | 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: b59cb51482a0f96d3af63895997edb1fdd31015c31df1eca736821950b66a63b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e54312e992cc7806b177d68e783fd8dfd48cdb7402adf9a73a09644d692ae1af",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2022-09-25T18:30:46Z",
    "title_canon_sha256": "3cb8fe406f4c6c5d5bbe3854c00f5439f283493c991884b661ac4351e79db473"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2209.12290",
    "kind": "arxiv",
    "version": 1
  }
}