Pith Number

pith:WABZBTKN

pith:2018:WABZBTKN5ABZ4HRVJHULSICG33

not attested not anchored not stored refs pending

Observing the influence of growing black holes on the pre-reionization IGM

Evgenii O. Vasiliev, Shiv K. Sethi, Yuri A. Shchekinov

arxiv:1808.08137 v1 · 2018-08-24 · 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{WABZBTKN5ABZ4HRVJHULSICG33}

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	2026-05-18T00:03:15.226741Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b00390cd4de8039e1e3549e8b92046dee3d6b40eec0437efb681cf1272f901b7

Aliases

arxiv: 1808.08137 · arxiv_version: 1808.08137v1 · doi: 10.48550/arxiv.1808.08137 · pith_short_12: WABZBTKN5ABZ · pith_short_16: WABZBTKN5ABZ4HRV · pith_short_8: WABZBTKN

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/WABZBTKN5ABZ4HRVJHULSICG33 \
  | 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: b00390cd4de8039e1e3549e8b92046dee3d6b40eec0437efb681cf1272f901b7

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c7d97c23270b047c46c6731e2db953f2fb40ad38fadc423942ec5a66136e5ee9",
    "cross_cats_sorted": [
      "astro-ph.CO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2018-08-24T13:40:53Z",
    "title_canon_sha256": "94d8ff2131f7e055552017ec906430b0f7d062dc3c75260bb1fbfc55617ce959"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1808.08137",
    "kind": "arxiv",
    "version": 1
  }
}