Pith Number

pith:5L3DO7TE

pith:2018:5L3DO7TEYFLQDNEEYGBP3VJSBB

not attested not anchored not stored refs pending

Glimmering in the dark: modeling the low-mass end of the $M_{\bullet}-\sigma$ relation and of the quasar luminosity function

Abraham Loeb, Fabio Pacucci, Ignacio Mart\'in-Navarro, Mar Mezcua

arxiv:1808.09452 v1 · 2018-08-28 · astro-ph.GA · astro-ph.CO · astro-ph.HE

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{5L3DO7TEYFLQDNEEYGBP3VJSBB}

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	2026-05-18T00:06:55.555251Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

eaf6377e64c15701b484c182fdd53208710687c6b2a2708aa793ebf0f8541c42

Aliases

arxiv: 1808.09452 · arxiv_version: 1808.09452v1 · doi: 10.48550/arxiv.1808.09452 · pith_short_12: 5L3DO7TEYFLQ · pith_short_16: 5L3DO7TEYFLQDNEE · pith_short_8: 5L3DO7TE

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/5L3DO7TEYFLQDNEEYGBP3VJSBB \
  | 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: eaf6377e64c15701b484c182fdd53208710687c6b2a2708aa793ebf0f8541c42

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b793a0257d4de322102fab1f6593dd14c23831fcf595c7a3e0b1f8cc7df8d4f4",
    "cross_cats_sorted": [
      "astro-ph.CO",
      "astro-ph.HE"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2018-08-28T18:00:00Z",
    "title_canon_sha256": "325d7b506288d1401962e5241d44f85dd79bd1fac8a9f7b435bec82ff2187add"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1808.09452",
    "kind": "arxiv",
    "version": 1
  }
}