Pith Number

pith:4Q7ZBYV7

pith:2011:4Q7ZBYV7WIWESHDEDHLD4ND663

not attested not anchored not stored refs pending

The Host Galaxies of Low-mass Black Holes

Aaron J. Barth, Jenny E. Greene, Luis C. Ho, Ting Xiao, Yan-Fei Jiang

arxiv:1107.4105 v2 · 2011-07-20 · 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{4Q7ZBYV7WIWESHDEDHLD4ND663}

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	2026-05-18T04:09:25.095016Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e43f90e2bfb22c491c6419d63e347ef6e42eddb859e8e7341697ae69db9bb7e4

Aliases

arxiv: 1107.4105 · arxiv_version: 1107.4105v2 · doi: 10.48550/arxiv.1107.4105 · pith_short_12: 4Q7ZBYV7WIWE · pith_short_16: 4Q7ZBYV7WIWESHDE · pith_short_8: 4Q7ZBYV7

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/4Q7ZBYV7WIWESHDEDHLD4ND663 \
  | 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: e43f90e2bfb22c491c6419d63e347ef6e42eddb859e8e7341697ae69db9bb7e4

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "924fc7a66106c2a54cdaf737f6e28343a695a2a02ef8a2dfcdcc10dc85dae03f",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2011-07-20T20:14:40Z",
    "title_canon_sha256": "0fed657fe45d2cae93a91a70670d7a7bd7c003b18fb669c2f8ffdcd727712333"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1107.4105",
    "kind": "arxiv",
    "version": 2
  }
}