Pith Number

pith:VKE4QB4Z

pith:2018:VKE4QB4Z7CAAVIEZ4DBEGHVP2T

not attested not anchored not stored refs pending

Proposal for an analog Schwarzschild black hole in condensates of light

D. van Oosten, E. C. I. van der Wurff, H.T.C. Stoof, L. Liao

arxiv:1806.00023 v2 · 2018-05-31 · cond-mat.quant-gas · gr-qc · quant-ph

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{VKE4QB4Z7CAAVIEZ4DBEGHVP2T}

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	2026-05-17T23:50:27.939984Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

aa89c80799f8800aa099e0c2431eafd4f7f987e7e885d44f9aa0ec331ec0078c

Aliases

arxiv: 1806.00023 · arxiv_version: 1806.00023v2 · doi: 10.48550/arxiv.1806.00023 · pith_short_12: VKE4QB4Z7CAA · pith_short_16: VKE4QB4Z7CAAVIEZ · pith_short_8: VKE4QB4Z

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/VKE4QB4Z7CAAVIEZ4DBEGHVP2T \
  | 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: aa89c80799f8800aa099e0c2431eafd4f7f987e7e885d44f9aa0ec331ec0078c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "441a3cc3c06b036dbc67601bedb6fa99076b01a23b15dd98a48a2b2ee1a6c19c",
    "cross_cats_sorted": [
      "gr-qc",
      "quant-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cond-mat.quant-gas",
    "submitted_at": "2018-05-31T18:00:18Z",
    "title_canon_sha256": "6e9fa7cbd2e5fb7b0af6d9d20b3a1f890b9272d45fec95c551daed04b637384e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1806.00023",
    "kind": "arxiv",
    "version": 2
  }
}