Pith Number

pith:WPIJPI2Z

pith:2026:WPIJPI2ZE7P52CYWI3OVEWSEKT

not attested not anchored not stored refs pending

Constraints on the properties of warm ionized gas from low-frequency hydrogen radio recombination lines

D. Anish Roshi, Kimberly L. Emig, Loren Anderson, Matteo Luisi, Pedro Salas

arxiv:2607.08542 v1 · 2026-07-09 · astro-ph.GA · astro-ph.IM

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{WPIJPI2ZE7P52CYWI3OVEWSEKT}

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	2026-07-10T01:19:53.220750Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b3d097a35927dfdd0b1646dd525a4454de60102dc67b960ffa9ff9b37993c050

Aliases

arxiv: 2607.08542 · arxiv_version: 2607.08542v1 · doi: 10.48550/arxiv.2607.08542 · pith_short_12: WPIJPI2ZE7P5 · pith_short_16: WPIJPI2ZE7P52CYW · pith_short_8: WPIJPI2Z

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/WPIJPI2ZE7P52CYWI3OVEWSEKT \
  | 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: b3d097a35927dfdd0b1646dd525a4454de60102dc67b960ffa9ff9b37993c050

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8aa073fbc9445e9a643b8f2f3eccc00f1642ee8547f0ff9a4d10af943f6471d3",
    "cross_cats_sorted": [
      "astro-ph.IM"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2026-07-09T14:36:04Z",
    "title_canon_sha256": "10f472e98b7ca8d74510887c5e31db3a88742d0adf9c54382e1cc071fa2384a1"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2607.08542",
    "kind": "arxiv",
    "version": 1
  }
}