Pith Number

pith:CUPIQXJE

pith:2018:CUPIQXJERLZL7TLKZ6R6TKKUXS

not attested not anchored not stored refs pending

Direct Collapse to Supermassive Black Hole Seeds with Radiative Transfer: Isolated Halos

2), (2) UK Lexington, (3) Georgia Tech, (4) JILA), Isaac Shlosman (1, John Wise (3), Kazem Ardaneh (1), Kentaro Nagamine (1), Mitchell Begelman (4) ((1) Osaka University, Yang Luo (1

arxiv:1801.08545 v2 · 2018-01-25 · 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{CUPIQXJERLZL7TLKZ6R6TKKUXS}

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	2026-05-18T00:18:40.988473Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

151e885d248af2bfcd6acfa3e9a954bc8743ec8c8b4f258c0dfdcc9291ca59ae

Aliases

arxiv: 1801.08545 · arxiv_version: 1801.08545v2 · doi: 10.48550/arxiv.1801.08545 · pith_short_12: CUPIQXJERLZL · pith_short_16: CUPIQXJERLZL7TLK · pith_short_8: CUPIQXJE

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/CUPIQXJERLZL7TLKZ6R6TKKUXS \
  | 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: 151e885d248af2bfcd6acfa3e9a954bc8743ec8c8b4f258c0dfdcc9291ca59ae

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "eef352ab5ccbb46105eb731a38730da6dbc61ff9960df0435f9b3888b9e25e17",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2018-01-25T19:00:02Z",
    "title_canon_sha256": "96e6039e5ae7b554229dee72924b9575cd444ac7fb3208dbf6a05bfc1c7195c4"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1801.08545",
    "kind": "arxiv",
    "version": 2
  }
}