Pith Number

pith:3PEWWCVG

pith:2003:3PEWWCVG52LHEPN3DQ2YTWW7S5

not attested not anchored not stored refs pending

M-BH - sigma relation for a Complete Sample of Soft X-ray Selected AGNs

Dirk Grupe & Smita Mathur

arxiv:astro-ph/0312390 v1 · 2003-12-15 · astro-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{3PEWWCVG52LHEPN3DQ2YTWW7S5}

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	2026-07-04T16:38:00.085931Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

dbc96b0aa6ee96723dbb1c3589dadf975ba7bc6bc9857887dd5888e8d3de4990

Aliases

arxiv: astro-ph/0312390 · arxiv_version: astro-ph/0312390v1 · doi: 10.48550/arxiv.astro-ph/0312390 · pith_short_12: 3PEWWCVG52LH · pith_short_16: 3PEWWCVG52LHEPN3 · pith_short_8: 3PEWWCVG

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/3PEWWCVG52LHEPN3DQ2YTWW7S5 \
  | 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: dbc96b0aa6ee96723dbb1c3589dadf975ba7bc6bc9857887dd5888e8d3de4990

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c0bef13ca85747bf796c25d04ab2a9a850f1363a745124763f264288c81d698e",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2003-12-15T21:01:25Z",
    "title_canon_sha256": "54bd1dabbdeebf39cfa9cc2823e1f7c871d98606a2dfa5dd08cfd8ab8005238a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0312390",
    "kind": "arxiv",
    "version": 1
  }
}