Pith Number

pith:JECT2G7X

pith:2008:JECT2G7XW42F4FMVRZLU4GKPCX

not attested not anchored not stored refs pending

The Evolution of Black Hole Mass and Spin in Active Galactic Nuclei

A.R. King, J.A. Hofmann, J.E. Pringle

arxiv:0801.1564 v1 · 2008-01-10 · 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{JECT2G7XW42F4FMVRZLU4GKPCX}

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.

Cited by

1 paper in Pith

Waveform Modelling for the Laser Interferometer Space Antenna

Receipt and verification

First computed	2026-07-04T17:08:24.194677Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

49053d1bf7b7345e15958e574e194f15d21bf83f9c97c2b9f289f7aea03ee86f

Aliases

arxiv: 0801.1564 · arxiv_version: 0801.1564v1 · doi: 10.48550/arxiv.0801.1564 · pith_short_12: JECT2G7XW42F · pith_short_16: JECT2G7XW42F4FMV · pith_short_8: JECT2G7X

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/JECT2G7XW42F4FMVRZLU4GKPCX \
  | 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: 49053d1bf7b7345e15958e574e194f15d21bf83f9c97c2b9f289f7aea03ee86f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "20f329ee2c832f1d6e33fe1e4662ed1048e839611019777254d47b323c132c45",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2008-01-10T09:20:04Z",
    "title_canon_sha256": "ca563e0b92c42d23916569ec5e5776375775e8b825497bff1bad25e20ae91a71"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0801.1564",
    "kind": "arxiv",
    "version": 1
  }
}