Pith Number

pith:JYLM7WWG

pith:2012:JYLM7WWGZKVDKBZIIS6S24CIQN

not attested not anchored not stored refs pending

The Black Hole Spin and Soft X-ray Excess of the Luminous Seyfert Galaxy Fairall 9

Andrew C. Fabian, Anne M. Lohfink, Christopher S. Reynolds, Jon M. Miller, Laura W. Brenneman, Michael A. Nowak, Richard F. Mushotzky

arxiv:1209.0468 v1 · 2012-09-03 · 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{JYLM7WWGZKVDKBZIIS6S24CIQN}

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	2026-05-18T01:54:47.846668Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

4e16cfdac6caaa35072844bd2d7048836e48c631fa48eb64e961ba24815727dc

Aliases

arxiv: 1209.0468 · arxiv_version: 1209.0468v1 · doi: 10.48550/arxiv.1209.0468 · pith_short_12: JYLM7WWGZKVD · pith_short_16: JYLM7WWGZKVDKBZI · pith_short_8: JYLM7WWG

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/JYLM7WWGZKVDKBZIIS6S24CIQN \
  | 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: 4e16cfdac6caaa35072844bd2d7048836e48c631fa48eb64e961ba24815727dc

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f43588a46f672cc89ce2c1ba467fec47b3afe1ac6f752491199dc39e55fed94c",
    "cross_cats_sorted": [
      "astro-ph.CO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2012-09-03T20:00:29Z",
    "title_canon_sha256": "e604fd2f04c1a0adfc727a9ceb3199c6b600a21890b8411d970388a3ac4fcd35"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1209.0468",
    "kind": "arxiv",
    "version": 1
  }
}