Pith Number

pith:6SPCB4FW

pith:2010:6SPCB4FWZDLUMARSCYJNN4IWML

not attested not anchored not stored refs pending

The Integrated Relativistic Iron Line from Active Galactic Nuclei: Chasing the Spin Evolution of Supermassive Black Holes

D.R. Ballantyne (Center for Relativistic Astrophysics, Georgia Tech)

arxiv:1005.0429 v1 · 2010-05-04 · astro-ph.HE · 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{6SPCB4FWZDLUMARSCYJNN4IWML}

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	2026-05-18T02:07:43.279803Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f49e20f0b6c8d74602321612d6f11662fe4ec8e26a2577963a256b8072cf804c

Aliases

arxiv: 1005.0429 · arxiv_version: 1005.0429v1 · doi: 10.48550/arxiv.1005.0429 · pith_short_12: 6SPCB4FWZDLU · pith_short_16: 6SPCB4FWZDLUMARS · pith_short_8: 6SPCB4FW

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/6SPCB4FWZDLUMARSCYJNN4IWML \
  | 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: f49e20f0b6c8d74602321612d6f11662fe4ec8e26a2577963a256b8072cf804c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4f34fe07dfc4c8849179e450d47e6eb9c6558ad3e4f91ec9b12d7dbe7ac18b7b",
    "cross_cats_sorted": [
      "astro-ph.CO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2010-05-04T02:25:30Z",
    "title_canon_sha256": "aefe3ffb2800fcd5155a0073c93e3deb52a54ca2180d559b484a93fe81831d7c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1005.0429",
    "kind": "arxiv",
    "version": 1
  }
}