Pith Number

pith:G3I253AC

pith:2026:G3I253ACWUVQGMZR4O5B5LGDME

not attested not anchored not stored refs pending

Model Independent Probe of Variation of Cosmic Opacity with Redshift

Meetu Luthra, Savita Gahlaut

arxiv:2605.29805 v1 · 2026-05-28 · 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{G3I253ACWUVQGMZR4O5B5LGDME}

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	2026-05-29T02:05:53.555273Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

36d1aeec02b52b033331e3ba1eacc361280afcc79bbda95b05f59846dc0e8504

Aliases

arxiv: 2605.29805 · arxiv_version: 2605.29805v1 · doi: 10.48550/arxiv.2605.29805 · pith_short_12: G3I253ACWUVQ · pith_short_16: G3I253ACWUVQGMZR · pith_short_8: G3I253AC

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/G3I253ACWUVQGMZR4O5B5LGDME \
  | 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: 36d1aeec02b52b033331e3ba1eacc361280afcc79bbda95b05f59846dc0e8504

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "371e66a04e0b64cac8729c33334033dfa87333ad39dcf4b53f3bd818d365d15e",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2026-05-28T11:51:24Z",
    "title_canon_sha256": "e34d7d07457117a603660b0cfa14079482621ad82484256829603644378f002e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2605.29805",
    "kind": "arxiv",
    "version": 1
  }
}