Pith Number

pith:ZA5I6OZ2

pith:2011:ZA5I6OZ2VNC4AV7BTVTLQVIDUZ

not attested not anchored not stored refs pending

Using the Fundamental Plane of Black Hole Activity to Distinguish X-ray Processes from Weakly Accreting Black Holes

Brandon C. Kelly (CfA, Cambridge), Elmar Koerding (U. Nijmegen, NL), Richard M. Plotkin (U. Amsterdam, Scott F. Anderson (U. Washington, Seattle), Sera Markoff (U. Amsterdam

arxiv:1105.3211 v2 · 2011-05-16 · 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{ZA5I6OZ2VNC4AV7BTVTLQVIDUZ}

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	2026-05-18T02:01:57.604391Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c83a8f3b3aab45c057e19d66b85503a67534db24a556b6478c8cd4380c78c04e

Aliases

arxiv: 1105.3211 · arxiv_version: 1105.3211v2 · doi: 10.48550/arxiv.1105.3211 · pith_short_12: ZA5I6OZ2VNC4 · pith_short_16: ZA5I6OZ2VNC4AV7B · pith_short_8: ZA5I6OZ2

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/ZA5I6OZ2VNC4AV7BTVTLQVIDUZ \
  | 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: c83a8f3b3aab45c057e19d66b85503a67534db24a556b6478c8cd4380c78c04e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1f153dd5ecd74dde096dfd4564590adee9eb6e5e67bb2c1c9ed6ab1cbbf76350",
    "cross_cats_sorted": [
      "astro-ph.CO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2011-05-16T20:19:34Z",
    "title_canon_sha256": "312968867f297f8152f75ab337b172ecea766e1eff073e05ebc5fb59a4176076"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1105.3211",
    "kind": "arxiv",
    "version": 2
  }
}