Pith Number

pith:SY2FBRNL

pith:2018:SY2FBRNL2Y4J3FBYSM5KPKXSFJ

not attested not anchored not stored refs pending

Horizon geometry for Kerr black holes with synchronised hair

Carlos A. R. Herdeiro, Eugen Radu, Jorge F. M. Delgado

arxiv:1804.04910 v1 · 2018-04-13 · gr-qc · 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{SY2FBRNL2Y4J3FBYSM5KPKXSFJ}

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	2026-05-18T00:13:26.331882Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

963450c5abd6389d9438933aa7aaf22a7c510fa5de31427cf73ffec55e434a6f

Aliases

arxiv: 1804.04910 · arxiv_version: 1804.04910v1 · doi: 10.48550/arxiv.1804.04910 · pith_short_12: SY2FBRNL2Y4J · pith_short_16: SY2FBRNL2Y4J3FBY · pith_short_8: SY2FBRNL

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/SY2FBRNL2Y4J3FBYSM5KPKXSFJ \
  | 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: 963450c5abd6389d9438933aa7aaf22a7c510fa5de31427cf73ffec55e434a6f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7ef13bf082c79c92474249a6b04b26ada951b6ab9a654aaf4a632aa6985dd359",
    "cross_cats_sorted": [
      "hep-th"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2018-04-13T12:18:26Z",
    "title_canon_sha256": "eb5fc495eae2175900225639f08271e838a07421936f8ab2f291fad9f59e21a1"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1804.04910",
    "kind": "arxiv",
    "version": 1
  }
}