Pith Number

pith:SEU2AYU6

pith:2010:SEU2AYU62YNRDIRWF3STKG6FYE

not attested not anchored not stored refs pending

Black Hole entropy for two higher derivative theories of gravity

Emilio Bellini, Lorenzo Sebastiani, Roberto Di Criscienzo, Sergio Zerbini

arxiv:1009.4816 v2 · 2010-09-24 · gr-qc

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{SEU2AYU62YNRDIRWF3STKG6FYE}

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.

Cited by

1 paper in Pith

Horizon-scale tests of gravity theories and fundamental physics from the Event Horizon Telescope image of Sagittarius A$^*$

Receipt and verification

First computed	2026-05-18T02:05:17.700028Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

9129a0629ed61b11a2362ee5351bc5c132f4e817f35c5d1cacbe09eafe68cf44

Aliases

arxiv: 1009.4816 · arxiv_version: 1009.4816v2 · doi: 10.48550/arxiv.1009.4816 · pith_short_12: SEU2AYU62YNR · pith_short_16: SEU2AYU62YNRDIRW · pith_short_8: SEU2AYU6

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/SEU2AYU62YNRDIRWF3STKG6FYE \
  | 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: 9129a0629ed61b11a2362ee5351bc5c132f4e817f35c5d1cacbe09eafe68cf44

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8b77453af952bd587fc8ea971ec89e82fa9a40a9c29d793128418a722f4d51cb",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2010-09-24T12:07:59Z",
    "title_canon_sha256": "cf317d95cf111adc29ba42e963b8cdedd82b2122b2423ea459601b5718f4bfcd"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1009.4816",
    "kind": "arxiv",
    "version": 2
  }
}