Pith Number

pith:SNNDWU7S

pith:2026:SNNDWU7SN7NEF5KVB2DGWX4U6N

not attested not anchored not stored refs pending

Ubiquitous Interstellar Neutral Helium Detected with JWST

B. M. Walsh, Brian Welch, D. Koutroumpa, F. S. Porter, Jane R. Rigby, K. D. Kuntz, Marshall Perrin, M. Galeazzi, Rosalia O'Brien, T. Hutchison, Yu. Ralchenko

arxiv:2608.09587 v1 · 2026-08-10 · 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{SNNDWU7SN7NEF5KVB2DGWX4U6N}

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	2026-08-11T02:24:33.818887Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

935a3b53f26fda42f5550e866b5f94f37464ac4703dadb15f4bc4559d9dd992d

Aliases

arxiv: 2608.09587 · arxiv_version: 2608.09587v1 · doi: 10.48550/arxiv.2608.09587 · pith_short_12: SNNDWU7SN7NE · pith_short_16: SNNDWU7SN7NEF5KV · pith_short_8: SNNDWU7S

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/SNNDWU7SN7NEF5KVB2DGWX4U6N \
  | 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: 935a3b53f26fda42f5550e866b5f94f37464ac4703dadb15f4bc4559d9dd992d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "45259ffd853cd4c5256eb08f870dab0386e97aa4a08e6e199305767c900cd648",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2026-08-10T13:21:17Z",
    "title_canon_sha256": "8ec448dad69c1d6b8c06b7d4469b635f00cd8530273c11162e0bdfd59683f750"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2608.09587",
    "kind": "arxiv",
    "version": 1
  }
}