Pith Number

pith:B37K7FSA

pith:2018:B37K7FSATWR4JR6QWYZPBLXHDG

not attested not anchored not stored refs pending

Gravitating solitons and black holes with synchronised hair in the four dimensional O(3) sigma-model

C. Herdeiro, E. Radu, I. Perapechka, Ya. Shnir

arxiv:1811.11799 v1 · 2018-11-28 · 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{B37K7FSATWR4JR6QWYZPBLXHDG}

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	2026-05-17T23:47:15.800217Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0efeaf96409da3c4c7d0b632f0aee719a1674c153c19ea550fed4852dba1d7d6

Aliases

arxiv: 1811.11799 · arxiv_version: 1811.11799v1 · doi: 10.48550/arxiv.1811.11799 · pith_short_12: B37K7FSATWR4 · pith_short_16: B37K7FSATWR4JR6Q · pith_short_8: B37K7FSA

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/B37K7FSATWR4JR6QWYZPBLXHDG \
  | 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: 0efeaf96409da3c4c7d0b632f0aee719a1674c153c19ea550fed4852dba1d7d6

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d8aa15849eaa5a022aa021bb06be0dd8bd8cac190dd3a35e404645fde853f9c3",
    "cross_cats_sorted": [
      "hep-th"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2018-11-28T19:47:48Z",
    "title_canon_sha256": "90c2958140bcd9ce14cbb1e662ac24963e7ba68e571936af9ced11443e68a8d5"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1811.11799",
    "kind": "arxiv",
    "version": 1
  }
}