Pith Number

pith:5NPMMSGI

pith:2019:5NPMMSGIFY4QRFLK6DPX6QKJWX

not attested not anchored not stored refs pending

Extended quantum portrait of MGD black holes and information entropy

A. Fernandes-Silva, A. J. Ferreira-Martins, R. da Rocha

arxiv:1901.07492 v2 · 2019-01-22 · 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{5NPMMSGIFY4QRFLK6DPX6QKJWX}

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	2026-05-17T23:51:25.698945Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

eb5ec648c82e3908956af0df7f4149b5f5adbb666c6e18324e934aec96f1d388

Aliases

arxiv: 1901.07492 · arxiv_version: 1901.07492v2 · doi: 10.48550/arxiv.1901.07492 · pith_short_12: 5NPMMSGIFY4Q · pith_short_16: 5NPMMSGIFY4QRFLK · pith_short_8: 5NPMMSGI

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/5NPMMSGIFY4QRFLK6DPX6QKJWX \
  | 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: eb5ec648c82e3908956af0df7f4149b5f5adbb666c6e18324e934aec96f1d388

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "be6d47bd39b3dc015b7ab28d1e190e2833da48c9d0fd1ca457e139e66c015d01",
    "cross_cats_sorted": [
      "gr-qc"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "hep-th",
    "submitted_at": "2019-01-22T18:12:07Z",
    "title_canon_sha256": "63f7710095cd112cbf710db63d92b83272f0056eb2764a386f2661b6d37ff7a4"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1901.07492",
    "kind": "arxiv",
    "version": 2
  }
}