Pith Number

pith:SASZBWT5

pith:2018:SASZBWT5NFG65HGYCXDB2SUJQK

not attested not anchored not stored refs pending

Optimal neighbourhood to nurture giants: a fundamental link between star forming galaxies and direct collapse black holes

Bhaskar Agarwal, Daniel Ceverino, Fergus Cullen, Ralf S. Klessen, Sadegh Khochfar

arxiv:1808.09981 v3 · 2018-08-29 · 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{SASZBWT5NFG65HGYCXDB2SUJQK}

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	2026-05-17T23:44:59.144858Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

902590da7d694dee9cd815c61d4a8982a05e336bd40cbac661319d035c131690

Aliases

arxiv: 1808.09981 · arxiv_version: 1808.09981v3 · doi: 10.48550/arxiv.1808.09981 · pith_short_12: SASZBWT5NFG6 · pith_short_16: SASZBWT5NFG65HGY · pith_short_8: SASZBWT5

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/SASZBWT5NFG65HGYCXDB2SUJQK \
  | 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: 902590da7d694dee9cd815c61d4a8982a05e336bd40cbac661319d035c131690

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e1fe26ee5e93e668a2ebd896f904a6fe7663d13c6f227ae8dbf33d04292cf7e8",
    "cross_cats_sorted": [
      "astro-ph.CO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2018-08-29T18:00:42Z",
    "title_canon_sha256": "4ac2bb6816d80a1eca5f8f1056c18bdf4c59b4312967711489c61b22b33ffefc"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1808.09981",
    "kind": "arxiv",
    "version": 3
  }
}