Pith Number

pith:BLADAWYA

pith:2022:BLADAWYAX2DVM4U3YZMCD7IRA6

not attested not anchored not stored refs pending

The Circumgalactic H$\alpha$ Spectrograph (CH$\alpha$S) I. Design, Engineering, and Early Commissioning

B\'arbara Cruvinel Santiago, Brian Smiley, David Schiminovich, Hwei Ru Ong, Ignacio Cevallos Aleman, Ioana Stelea, Marisa Murillo, Marni Rosenthal, Meghna Sitaram, Nicole Melso, Sarah Graber

arxiv:2209.14999 v1 · 2022-09-29 · 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{BLADAWYAX2DVM4U3YZMCD7IRA6}

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	2026-07-05T05:30:14.043978Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0ac0305b00be8756729bc65821fd1107a1bf0591b69bc12ca472a99571f63cc2

Aliases

arxiv: 2209.14999 · arxiv_version: 2209.14999v1 · doi: 10.48550/arxiv.2209.14999 · pith_short_12: BLADAWYAX2DV · pith_short_16: BLADAWYAX2DVM4U3 · pith_short_8: BLADAWYA

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/BLADAWYAX2DVM4U3YZMCD7IRA6 \
  | 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: 0ac0305b00be8756729bc65821fd1107a1bf0591b69bc12ca472a99571f63cc2

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "58693081afb01cef15981320a05c529809c7918b96c3136e8696e421f2dd0c3f",
    "cross_cats_sorted": [
      "astro-ph.IM"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2022-09-29T17:56:57Z",
    "title_canon_sha256": "534b6819e45029c8a089fa96e520fdab9b6bf741cf84404e4d51276a37be726b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2209.14999",
    "kind": "arxiv",
    "version": 1
  }
}