Pith Number

pith:TDOXAXVW

pith:2008:TDOXAXVWEK7QKXOZ3QJ47PAXU7

not attested not anchored not stored refs pending

Populating the galaxy velocity dispersion - supermassive black hole mass diagram: A catalogue of (M_bh, sigma) values

Alister W. Graham

arxiv:0807.2549 v1 · 2008-07-16 · 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{TDOXAXVWEK7QKXOZ3QJ47PAXU7}

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	2026-05-18T03:57:13.101166Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

98dd705eb622bf055dd9dc13cfbc17a7d36032e6c0e654b46b8dbca5c6ee9530

Aliases

arxiv: 0807.2549 · arxiv_version: 0807.2549v1 · doi: 10.48550/arxiv.0807.2549 · pith_short_12: TDOXAXVWEK7Q · pith_short_16: TDOXAXVWEK7QKXOZ · pith_short_8: TDOXAXVW

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/TDOXAXVWEK7QKXOZ3QJ47PAXU7 \
  | 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: 98dd705eb622bf055dd9dc13cfbc17a7d36032e6c0e654b46b8dbca5c6ee9530

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4ac5b3640cb66b1e00e5cd9a0827f6f53f9c01dec776b033e92017f52f263622",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph",
    "submitted_at": "2008-07-16T13:45:52Z",
    "title_canon_sha256": "bf086ee085a81ff5b1b43635d26f802708fcb7ccc8df6822d93e7a6c7e8b4d14"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0807.2549",
    "kind": "arxiv",
    "version": 1
  }
}