Pith Number

pith:H4KOEAEF

pith:2019:H4KOEAEF7RJGI7NYFKKMJAEBZT

not attested not anchored not stored refs pending

The 21cm bispectrum during reionization: a tracer of the ionization topology

Anne Hutter, Catherine A. Watkinson, Darren J. Croton, Jacob Seiler, Manodeep Sinha, Pratika Dayal

arxiv:1907.04342 v2 · 2019-07-09 · astro-ph.CO · 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{H4KOEAEF7RJGI7NYFKKMJAEBZT}

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	2026-07-05T00:30:18.113019Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3f14e20085fc52647db82a94c48081ccdcc102ce3c93f8a8434869de93f14129

Aliases

arxiv: 1907.04342 · arxiv_version: 1907.04342v2 · doi: 10.48550/arxiv.1907.04342 · pith_short_12: H4KOEAEF7RJG · pith_short_16: H4KOEAEF7RJGI7NY · pith_short_8: H4KOEAEF

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/H4KOEAEF7RJGI7NYFKKMJAEBZT \
  | 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: 3f14e20085fc52647db82a94c48081ccdcc102ce3c93f8a8434869de93f14129

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b3c8d9d9a603d60bdbe2014ecc02dc27c342fcee9184e32f63afa6bb52ec8e8a",
    "cross_cats_sorted": [
      "astro-ph.GA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2019-07-09T18:03:07Z",
    "title_canon_sha256": "d417f280cef8ba450684a272219a47f912502ec5f934d7eb2dcb5eb677e5dd81"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1907.04342",
    "kind": "arxiv",
    "version": 2
  }
}