Pith Number

pith:3TGKZN3H

pith:2006:3TGKZN3HCZOGADUYP5Z3FC63AW

not attested not anchored not stored refs pending

The parallel lives of supermassive black holes and their host galaxies

A. Merloni (MPA), G. Rudnick (NOAO), T. Di Matteo (CMU)

arxiv:astro-ph/0602530 v1 · 2006-02-24 · 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{3TGKZN3HCZOGADUYP5Z3FC63AW}

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	2026-05-18T01:40:32.390699Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

dcccacb767165c600e987f73b28bdb05a5b69ae09e90645648698a2a5dbd7cd9

Aliases

arxiv: astro-ph/0602530 · arxiv_version: astro-ph/0602530v1 · doi: 10.48550/arxiv.astro-ph/0602530 · pith_short_12: 3TGKZN3HCZOG · pith_short_16: 3TGKZN3HCZOGADUY · pith_short_8: 3TGKZN3H

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/3TGKZN3HCZOGADUYP5Z3FC63AW \
  | 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: dcccacb767165c600e987f73b28bdb05a5b69ae09e90645648698a2a5dbd7cd9

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2c4bb6206cb668cdfc1f023f9efec9a7d636aea3113a20325c2d277c0f1c30bc",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2006-02-24T08:45:36Z",
    "title_canon_sha256": "3a8780aa7fc099aeca4deab41ce1fc66039c7dc9b54796ba211b05f4e50ced98"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0602530",
    "kind": "arxiv",
    "version": 1
  }
}