Pith Number

pith:Q4EVWFPI

pith:2018:Q4EVWFPIBLQAPG24G7IISIVCRV

not attested not anchored not stored refs pending

Analog Kerr Black hole and Penrose effect in a Bose-Einstein Condensate

C. Leblanc, D. D. Solnyshkov, G. Malpuech, O. Bleu, S. V. Koniakhin

arxiv:1809.05386 v2 · 2018-09-14 · cond-mat.quant-gas · 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{Q4EVWFPIBLQAPG24G7IISIVCRV}

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	2026-05-17T23:41:46.005769Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

87095b15e80ae0079b5c37d08922a28d6b97726eeab09cf89bff5063b26eb481

Aliases

arxiv: 1809.05386 · arxiv_version: 1809.05386v2 · doi: 10.48550/arxiv.1809.05386 · pith_short_12: Q4EVWFPIBLQA · pith_short_16: Q4EVWFPIBLQAPG24 · pith_short_8: Q4EVWFPI

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/Q4EVWFPIBLQAPG24G7IISIVCRV \
  | 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: 87095b15e80ae0079b5c37d08922a28d6b97726eeab09cf89bff5063b26eb481

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "150d6c472615280a02f4eefb5353c74fa42f6d2beb248ca6b5aa27e6b4fe8284",
    "cross_cats_sorted": [
      "gr-qc"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cond-mat.quant-gas",
    "submitted_at": "2018-09-14T13:05:43Z",
    "title_canon_sha256": "9871d73888e95cb2ef2bb5a806efbd1fafd7402e0cc4b67d1bdffd62aeec0d64"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1809.05386",
    "kind": "arxiv",
    "version": 2
  }
}