Pith Number

pith:7ADGWKYO

pith:2002:7ADGWKYOKPKVC5FCR64TDDFVV7

not attested not anchored not stored refs pending

Extremal Black Holes in Supergravity and the Bekenstein-Hawking Entropy

L. Andrianopoli, R. D'Auria

arxiv:hep-th/0203076 v1 · 2002-03-08 · 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{7ADGWKYOKPKVC5FCR64TDDFVV7}

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	2026-05-18T04:21:30.342903Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f8066b2b0e53d55174a28fb9318cb5afc8b1cb6beb178b06165459fd6ec8c673

Aliases

arxiv: hep-th/0203076 · arxiv_version: hep-th/0203076v1 · doi: 10.48550/arxiv.hep-th/0203076 · pith_short_12: 7ADGWKYOKPKV · pith_short_16: 7ADGWKYOKPKVC5FC · pith_short_8: 7ADGWKYO

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/7ADGWKYOKPKVC5FCR64TDDFVV7 \
  | 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: f8066b2b0e53d55174a28fb9318cb5afc8b1cb6beb178b06165459fd6ec8c673

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5698174dbb3eed02ca27f4c43f986336c352d664be3d06341af8a7bc73e67dbe",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "hep-th",
    "submitted_at": "2002-03-08T14:38:36Z",
    "title_canon_sha256": "e173f3e6d3ad60e29d5a481fcbedf123ae9a5a7db57bb6fd557c5c7f0330c16c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "hep-th/0203076",
    "kind": "arxiv",
    "version": 1
  }
}