Pith Number

pith:VJQ6WSY5

pith:2019:VJQ6WSY57VKXT7RUUDM7SYLPE6

not attested not anchored not stored refs pending

Does black-hole growth depend fundamentally on host-galaxy compactness?

B. Luo, C.-T. J. Chen, D. M. Alexander, F. Vito, G. Yang, Q. Ni, W. N. Brandt, Y. Q. Xue

arxiv:1909.06382 v1 · 2019-09-13 · 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{VJQ6WSY57VKXT7RUUDM7SYLPE6}

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	2026-07-05T00:06:59.146725Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

aa61eb4b1dfd5579fe34a0d9f9616f279096738e16c147612c8d558d9abe1103

Aliases

arxiv: 1909.06382 · arxiv_version: 1909.06382v1 · doi: 10.48550/arxiv.1909.06382 · pith_short_12: VJQ6WSY57VKX · pith_short_16: VJQ6WSY57VKXT7RU · pith_short_8: VJQ6WSY5

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/VJQ6WSY57VKXT7RUUDM7SYLPE6 \
  | 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: aa61eb4b1dfd5579fe34a0d9f9616f279096738e16c147612c8d558d9abe1103

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7966d5eaab56ae5674b8010877a043be7e83f24fb63cbb4bb69080e2c8d8f50a",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2019-09-13T18:00:02Z",
    "title_canon_sha256": "022635b2418f460505404a6eed08b6da6b13cfe6abf3f2782dec108a2dedaf31"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1909.06382",
    "kind": "arxiv",
    "version": 1
  }
}