Pith Number

pith:4KPC2BVD

pith:2015:4KPC2BVDONXMPVORIDZYR2DJHY

not attested not anchored not stored refs pending

Hydrogen Reionization in the Illustris universe

Andreas Bauer, Debora Sijacki, Dylan Nelson, Lars Hernquist, Mark Vogelsberger, Paul Torrey, Shy Genel, Volker Springel

arxiv:1503.00734 v2 · 2015-03-02 · 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{4KPC2BVDONXMPVORIDZYR2DJHY}

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	2026-05-18T01:34:35.009485Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e29e2d06a3736ec7d5d140f388e8693e34a78376196182269372882698115cf8

Aliases

arxiv: 1503.00734 · arxiv_version: 1503.00734v2 · doi: 10.48550/arxiv.1503.00734 · pith_short_12: 4KPC2BVDONXM · pith_short_16: 4KPC2BVDONXMPVOR · pith_short_8: 4KPC2BVD

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/4KPC2BVDONXMPVORIDZYR2DJHY \
  | 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: e29e2d06a3736ec7d5d140f388e8693e34a78376196182269372882698115cf8

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "30f9c7d057351df1ba69779e593354ea1b5d9d9551d6ed166c5f32942776e436",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2015-03-02T21:00:30Z",
    "title_canon_sha256": "b52c30ce65f43befec058e28b1bb8eecf017b5e03a131cfd1d8169f4ce1113f7"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1503.00734",
    "kind": "arxiv",
    "version": 2
  }
}