Pith Number

pith:ASO6ULIM

pith:2012:ASO6ULIMRVCP6IUJ67X7UEV6X5

not attested not anchored not stored refs pending

Cosmological Evolution of Supermassive Black Holes. II. Evidence for Downsizing of Spin Evolution

Jian-Min Wang, Luis C. Ho, Yan-Rong Li

arxiv:1202.3516 v1 · 2012-02-16 · 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{ASO6ULIMRVCP6IUJ67X7UEV6X5}

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	2026-05-18T01:58:27.739877Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

049dea2d0c8d44ff2289f7effa12bebf7a009b84c57a943b7e13d64e0a173f9a

Aliases

arxiv: 1202.3516 · arxiv_version: 1202.3516v1 · doi: 10.48550/arxiv.1202.3516 · pith_short_12: ASO6ULIMRVCP · pith_short_16: ASO6ULIMRVCP6IUJ · pith_short_8: ASO6ULIM

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/ASO6ULIMRVCP6IUJ67X7UEV6X5 \
  | 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: 049dea2d0c8d44ff2289f7effa12bebf7a009b84c57a943b7e13d64e0a173f9a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a9b282e849c1c5d01382e76fa61a641bed7487c240955148b01048c16bdef7ee",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2012-02-16T06:48:11Z",
    "title_canon_sha256": "89936be443ba119bc4a3322c2e99ef791d15c48db5836d186672f801ad0822ff"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1202.3516",
    "kind": "arxiv",
    "version": 1
  }
}