Pith Number

pith:MUHLUR4C

pith:2018:MUHLUR4CG7V26QFBLT2FYRHTHW

not attested not anchored not stored refs pending

Constraining the reionization history with CMB and spectroscopic observations

Rong-Gen Cai, Wei-Ming Dai, Yin-Zhe Ma, Zong-Kuan Guo

arxiv:1805.02236 v2 · 2018-05-06 · 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{MUHLUR4CG7V26QFBLT2FYRHTHW}

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	2026-05-17T23:52:42.042914Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

650eba478237ebaf40a15cf45c44f33d885a7c8b4cf001949255ce2a5b8cda09

Aliases

arxiv: 1805.02236 · arxiv_version: 1805.02236v2 · doi: 10.48550/arxiv.1805.02236 · pith_short_12: MUHLUR4CG7V2 · pith_short_16: MUHLUR4CG7V26QFB · pith_short_8: MUHLUR4C

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/MUHLUR4CG7V26QFBLT2FYRHTHW \
  | 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: 650eba478237ebaf40a15cf45c44f33d885a7c8b4cf001949255ce2a5b8cda09

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1804da152fb65839eb283f7b9e787ec2f8039dbb0c72d1376c6f27f0d339f98b",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2018-05-06T15:36:07Z",
    "title_canon_sha256": "111505ae0233ee2738625f121d98a889dcc90e9dcca8a26b36978503991e8f5c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1805.02236",
    "kind": "arxiv",
    "version": 2
  }
}