Pith Number

pith:Q2F5VKJP

pith:2024:Q2F5VKJPY3KOFVBCYBDAK6KHC6

not attested not anchored not stored refs pending

Simultaneous measurements on cosmic curvature and opacity using latest HII regions and $H(z)$ observations

Jiayuan Huang, Marek Biesiada, Shu-Min Wu, Tonghua Liu, Xiaolan Cheng, Ying Yang

arxiv:2401.03413 v1 · 2024-01-07 · 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{Q2F5VKJPY3KOFVBCYBDAK6KHC6}

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	2026-07-05T07:31:07.972077Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

868bdaa92fc6d4e2d422c04605794717b43d0e9348f65a08fb4ba55deabc813a

Aliases

arxiv: 2401.03413 · arxiv_version: 2401.03413v1 · doi: 10.48550/arxiv.2401.03413 · pith_short_12: Q2F5VKJPY3KO · pith_short_16: Q2F5VKJPY3KOFVBC · pith_short_8: Q2F5VKJP

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/Q2F5VKJPY3KOFVBCYBDAK6KHC6 \
  | 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: 868bdaa92fc6d4e2d422c04605794717b43d0e9348f65a08fb4ba55deabc813a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "bd1f659d7dfc9a42213e203015914b2fbd29cfc6c2aa2a3a9ee207c9bba90902",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2024-01-07T08:07:17Z",
    "title_canon_sha256": "4a0743fd2b3405bf69fc4eb0963b3ffed304adda13e316637e1d71522a48d6ae"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2401.03413",
    "kind": "arxiv",
    "version": 1
  }
}