Pith Number

pith:5CGSIHS4

pith:2011:5CGSIHS4PW6IC4GU5C2Y6AQXUQ

not attested not anchored not stored refs pending

The broad Fe K{\alpha} line and supermassive black holes

Predrag Jovanovi\'c

arxiv:1112.0172 v1 · 2011-12-01 · 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{5CGSIHS4PW6IC4GU5C2Y6AQXUQ}

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	2026-05-18T01:59:20.542789Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e88d241e5c7dbc8170d4e8b58f0217a407308090df0f2ef1af6f83c1790f181f

Aliases

arxiv: 1112.0172 · arxiv_version: 1112.0172v1 · doi: 10.48550/arxiv.1112.0172 · pith_short_12: 5CGSIHS4PW6I · pith_short_16: 5CGSIHS4PW6IC4GU · pith_short_8: 5CGSIHS4

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/5CGSIHS4PW6IC4GU5C2Y6AQXUQ \
  | 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: e88d241e5c7dbc8170d4e8b58f0217a407308090df0f2ef1af6f83c1790f181f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a160f78be949fa4ca450b74abfe824255dd961b14f9c92784a4a0ecc2a183c73",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2011-12-01T13:26:44Z",
    "title_canon_sha256": "ac7114bd5a7a5293bf338f2c91ffe490880f2269968186e61edf9e2e61835673"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1112.0172",
    "kind": "arxiv",
    "version": 1
  }
}