Pith Number

pith:NUFNLMCD

pith:2021:NUFNLMCDUSRQJSOD4LYJ6NPEDZ

not attested not anchored not stored refs pending

Impact of gas based seeding on supermassive black hole populations at $z\geq7$

Aklant K. Bhowmick, Dylan Nelson, Kaitlyn Kosciw, Lars Hernquist, Laura Blecha, Luke Zoltan Kelley, Mark Vogelsberger, Paul Torrey, Rainer Weinberger

arxiv:2105.08055 v2 · 2021-05-17 · 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{NUFNLMCDUSRQJSOD4LYJ6NPEDZ}

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	2026-07-05T03:34:43.893557Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6d0ad5b043a4a304c9c3e2f09f35e41e675f0069a3f5dab99c32768e69eda1b8

Aliases

arxiv: 2105.08055 · arxiv_version: 2105.08055v2 · doi: 10.48550/arxiv.2105.08055 · pith_short_12: NUFNLMCDUSRQ · pith_short_16: NUFNLMCDUSRQJSOD · pith_short_8: NUFNLMCD

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/NUFNLMCDUSRQJSOD4LYJ6NPEDZ \
  | 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: 6d0ad5b043a4a304c9c3e2f09f35e41e675f0069a3f5dab99c32768e69eda1b8

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ade15448eaef787931068ce09e30bb0df5799dbbc440fe04a49ae439b7f38d75",
    "cross_cats_sorted": [
      "astro-ph.CO"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2021-05-17T17:59:08Z",
    "title_canon_sha256": "a82879204e2056e9cd12db1ad9e94979901c9907172b2391172f5b5f1066e169"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2105.08055",
    "kind": "arxiv",
    "version": 2
  }
}