Pith Number

pith:NN3DLDHV

pith:2007:NN3DLDHVQVTLOFEO44AUGBXECL

not attested not anchored not stored refs pending

A Rigorous Treatment of Energy Extraction from a Rotating Black Hole

Felix Finster, Joel Smoller, Niky Kamran, Shing-Tung Yau

arxiv:gr-qc/0701018 v3 · 2007-01-01 · gr-qc · math-ph · math.MP

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{NN3DLDHVQVTLOFEO44AUGBXECL}

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	2026-05-18T02:37:27.079802Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6b76358cf58566b7148ee7014306e412ca162d112294c8b602f2827af72bcfe6

Aliases

arxiv: gr-qc/0701018 · arxiv_version: gr-qc/0701018v3 · doi: 10.48550/arxiv.gr-qc/0701018 · pith_short_12: NN3DLDHVQVTL · pith_short_16: NN3DLDHVQVTLOFEO · pith_short_8: NN3DLDHV

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/NN3DLDHVQVTLOFEO44AUGBXECL \
  | 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: 6b76358cf58566b7148ee7014306e412ca162d112294c8b602f2827af72bcfe6

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5244bf5cba20084de96f274beb01106251c7bf06fbf8b80ea43214d5a2a9e3fb",
    "cross_cats_sorted": [
      "math-ph",
      "math.MP"
    ],
    "license": "",
    "primary_cat": "gr-qc",
    "submitted_at": "2007-01-01T21:59:50Z",
    "title_canon_sha256": "0ddbdcbc137e6942b6b51bf1f4d2186a97b1b356bc0d1a38e06cb0875bc08164"
  },
  "schema_version": "1.0",
  "source": {
    "id": "gr-qc/0701018",
    "kind": "arxiv",
    "version": 3
  }
}