Pith Number

pith:A52IC33U

pith:2016:A52IC33UU3JYEOEVBYMTR3MFK4

not attested not anchored not stored refs pending

Quasar Host Galaxies and the $M_{SMBH}$ - $\sigma_{*}$ Relation

Andrew I. Sheinis, \'Angel R. L\'opez-S\'anchez

arxiv:1612.00528 v1 · 2016-12-02 · 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{A52IC33UU3JYEOEVBYMTR3MFK4}

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	2026-05-18T00:52:37.440407Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0774816f74a6d38238950e1938ed85572a9f8b96238ea7649b38f226eab55974

Aliases

arxiv: 1612.00528 · arxiv_version: 1612.00528v1 · doi: 10.48550/arxiv.1612.00528 · pith_short_12: A52IC33UU3JY · pith_short_16: A52IC33UU3JYEOEV · pith_short_8: A52IC33U

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/A52IC33UU3JYEOEVBYMTR3MFK4 \
  | 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: 0774816f74a6d38238950e1938ed85572a9f8b96238ea7649b38f226eab55974

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "13962f28313203b660097dd69a3ae7b16f0d2863d1f8d026ac7fb91e5c8ebf68",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2016-12-02T00:55:53Z",
    "title_canon_sha256": "163985c81f88bc47fca47ff873d0cb4d3f80a495bb9e8852a8913d672e205a10"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1612.00528",
    "kind": "arxiv",
    "version": 1
  }
}