Pith Number

pith:WT2PT3PR

pith:2026:WT2PT3PRYB3SXV67WHJTJS4LHS

not attested not anchored not stored refs pending

RUBIES: The Evolution of the Ionization Parameter from 0 < z < 9

Adele Plat, Anna de Graaff, Emilie Burnham, Harley Katz, Ian McConachie, Jakob M. Helton, Joel Leja, Lucie Scharre, Michaela Hirschmann, Michael V. Maseda, Nikko J. Cleri, Olivia Curtis, Zach J. Lewis

arxiv:2605.30410 v1 · 2026-05-28 · astro-ph.GA

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{WT2PT3PRYB3SXV67WHJTJS4LHS}

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	2026-06-01T00:02:09.564256Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b4f4f9edf1c0772bd7dfb1d334cb8b3c939ed75cf3709531b04e3a78e2d9d26d

Aliases

arxiv: 2605.30410 · arxiv_version: 2605.30410v1 · doi: 10.48550/arxiv.2605.30410 · pith_short_12: WT2PT3PRYB3S · pith_short_16: WT2PT3PRYB3SXV67 · pith_short_8: WT2PT3PR

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/WT2PT3PRYB3SXV67WHJTJS4LHS \
  | 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: b4f4f9edf1c0772bd7dfb1d334cb8b3c939ed75cf3709531b04e3a78e2d9d26d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2126c63787a46c9d941f8ecc9198209f33ed18f71af2e3285b303d1e5c8e337a",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2026-05-28T18:00:00Z",
    "title_canon_sha256": "57cb135f6669d2f66d86ac23df0ea328d87f71a8540af473d5edc7fc7d0f3272"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2605.30410",
    "kind": "arxiv",
    "version": 1
  }
}