Pith Number

pith:EVMI7ZSJ

pith:2009:EVMI7ZSJCPJGUJS2PLUZM64AMI

not attested not anchored not stored refs pending

Black hole entropy, flat directions and higher derivatives

A. Shcherbakov, A. Yeranyan, S. Bellucci, S. Ferrara

arxiv:0906.4910 v1 · 2009-06-26 · hep-th

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{EVMI7ZSJCPJGUJS2PLUZM64AMI}

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	2026-05-18T04:35:57.285888Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

25588fe64913d26a265a7ae9967b806230a68d246b97572cff837c9083ad0041

Aliases

arxiv: 0906.4910 · arxiv_version: 0906.4910v1 · doi: 10.48550/arxiv.0906.4910 · pith_short_12: EVMI7ZSJCPJG · pith_short_16: EVMI7ZSJCPJGUJS2 · pith_short_8: EVMI7ZSJ

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/EVMI7ZSJCPJGUJS2PLUZM64AMI \
  | 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: 25588fe64913d26a265a7ae9967b806230a68d246b97572cff837c9083ad0041

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "02d498f8f8249784117b6f9c1e0bce42d79973d9bcc126aad161c1122d9327cb",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "hep-th",
    "submitted_at": "2009-06-26T11:44:31Z",
    "title_canon_sha256": "d698609e1deccabb968c6005ad4ff52a6b4f823ddbb0b931d9bc3a7e6960046b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0906.4910",
    "kind": "arxiv",
    "version": 1
  }
}