Pith Number

pith:4ITMES43

pith:2010:4ITMES43S4EQIFZYXTA4Q6MGSI

not attested not anchored not stored refs pending

The SMBH mass versus M_G sigma^2 relation: A comparison between real data and numerical models

A. Feoli, F. Marulli, L. Mancini, S. van den Bergh

arxiv:1002.1703 v2 · 2010-02-08 · astro-ph.CO · 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{4ITMES43S4EQIFZYXTA4Q6MGSI}

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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	2026-05-18T04:05:04.302303Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e226c24b9b9709041738bcc1c87986920c69a9d7233c51fc653ef086c5b22fed

Aliases

arxiv: 1002.1703 · arxiv_version: 1002.1703v2 · doi: 10.48550/arxiv.1002.1703 · pith_short_12: 4ITMES43S4EQ · pith_short_16: 4ITMES43S4EQIFZY · pith_short_8: 4ITMES43

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/4ITMES43S4EQIFZYXTA4Q6MGSI \
  | 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: e226c24b9b9709041738bcc1c87986920c69a9d7233c51fc653ef086c5b22fed

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ce3f061b854631f6b847c1d562a946b8808f06f5ce0b8f09e4f80d233357d318",
    "cross_cats_sorted": [
      "astro-ph.GA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2010-02-08T20:19:08Z",
    "title_canon_sha256": "5e896cf94a36609e4dc2576b644f9e563bb18adcd273b19ffbb5436734f0341d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1002.1703",
    "kind": "arxiv",
    "version": 2
  }
}