Pith Number

pith:FDROHSSS

pith:2019:FDROHSSSGR4C2VOBFZN34Y6NTU

not attested not anchored not stored refs pending

An entropy current for dynamical black holes in four-derivative theories of gravity

Anirban Dinda, Jyotirmoy Bhattacharya, Nilay Kundu, Sayantani Bhattacharyya

arxiv:1912.11030 v2 · 2019-12-23 · hep-th · 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{FDROHSSSGR4C2VOBFZN34Y6NTU}

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	2026-07-05T01:11:43.920197Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

28e2e3ca5234782d55c12e5bbe63cd9d016fba8f415f502573ead20b2e01ce5b

Aliases

arxiv: 1912.11030 · arxiv_version: 1912.11030v2 · doi: 10.48550/arxiv.1912.11030 · pith_short_12: FDROHSSSGR4C · pith_short_16: FDROHSSSGR4C2VOB · pith_short_8: FDROHSSS

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/FDROHSSSGR4C2VOBFZN34Y6NTU \
  | 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: 28e2e3ca5234782d55c12e5bbe63cd9d016fba8f415f502573ead20b2e01ce5b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "40d4b8be2faeaa1af23596220d25a8321172cc7ca92de19b543019dae4797246",
    "cross_cats_sorted": [
      "gr-qc"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "hep-th",
    "submitted_at": "2019-12-23T18:50:07Z",
    "title_canon_sha256": "38e214260a0e826ba63754331c7dc3cad6f34cb2f3755675f5b996199b1ed5c4"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1912.11030",
    "kind": "arxiv",
    "version": 2
  }
}