Pith Number

pith:I6ZYUYQD

pith:2009:I6ZYUYQDBLC7GLGRQV5PXNK4QX

not attested not anchored not stored refs pending

The M_bh-sigma diagram, and the offset nature of barred active galaxies

Alister W. Graham, I-hui Li

arxiv:0904.1290 v2 · 2009-04-08 · astro-ph.CO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{I6ZYUYQDBLC7GLGRQV5PXNK4QX}

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	2026-05-18T03:57:13.079206Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

47b38a62030ac5f32cd1857afbb55c85deba75d26199d332d5f92ea908a465cd

Aliases

arxiv: 0904.1290 · arxiv_version: 0904.1290v2 · doi: 10.48550/arxiv.0904.1290 · pith_short_12: I6ZYUYQDBLC7 · pith_short_16: I6ZYUYQDBLC7GLGR · pith_short_8: I6ZYUYQD

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/I6ZYUYQDBLC7GLGRQV5PXNK4QX \
  | 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: 47b38a62030ac5f32cd1857afbb55c85deba75d26199d332d5f92ea908a465cd

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0b7d7687c5f5afd9829ecad91644ef3696f8f29548387b8fd5eb4c387191352d",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2009-04-08T09:02:55Z",
    "title_canon_sha256": "db7cc52f1b0845ad49ebc195116a22bacb728d2913ca971b9666b9cd754e1f80"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0904.1290",
    "kind": "arxiv",
    "version": 2
  }
}