Pith Number

pith:2AKZ5P73

pith:2019:2AKZ5P73QH7BFEZ45RIFBFYRD2

not attested not anchored not stored refs pending

Atomic hydrogen in star-forming galaxies at intermediate redshifts

Apurba Bera, Jasjeet S. Bagla, Jayaram N. Chengalur, Nissim Kanekar

arxiv:1909.05905 v1 · 2019-09-12 · astro-ph.GA · 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{2AKZ5P73QH7BFEZ45RIFBFYRD2}

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.

Cited by

1 paper in Pith

Weak Evolution of Cosmic Atomic Hydrogen over the Past 4.5 Billion Years

Receipt and verification

First computed	2026-07-05T00:04:30.690409Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d0159ebffb81fe12933cec505097111eaabb02668be080ebede93dc19383e4d7

Aliases

arxiv: 1909.05905 · arxiv_version: 1909.05905v1 · doi: 10.48550/arxiv.1909.05905 · pith_short_12: 2AKZ5P73QH7B · pith_short_16: 2AKZ5P73QH7BFEZ4 · pith_short_8: 2AKZ5P73

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/2AKZ5P73QH7BFEZ45RIFBFYRD2 \
  | 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: d0159ebffb81fe12933cec505097111eaabb02668be080ebede93dc19383e4d7

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8d125d74b82ff52317c5152015686fd961a29abe924d081067b4a1a1df5179e3",
    "cross_cats_sorted": [
      "astro-ph.CO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2019-09-12T18:50:18Z",
    "title_canon_sha256": "64701d0ee64b6377b8549dc049d91cffe9829c04cca8ad57105b90406ae45052"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1909.05905",
    "kind": "arxiv",
    "version": 1
  }
}