Pith Number

pith:XUT2HSPO

pith:2013:XUT2HSPOQONLH7VAMTHHDPJDTQ

not attested not anchored not stored refs pending

Nonstationary analogue black holes

Gregory Eskin

arxiv:1306.0149 v2 · 2013-06-01 · math-ph · gr-qc · math.AP · math.MP

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{XUT2HSPOQONLH7VAMTHHDPJDTQ}

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	2026-05-18T01:49:38.857822Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

bd27a3c9ee839ab3fea064ce71bd239c16ea896f1c6db6e41c934bbd19d95922

Aliases

arxiv: 1306.0149 · arxiv_version: 1306.0149v2 · doi: 10.48550/arxiv.1306.0149 · pith_short_12: XUT2HSPOQONL · pith_short_16: XUT2HSPOQONLH7VA · pith_short_8: XUT2HSPO

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/XUT2HSPOQONLH7VAMTHHDPJDTQ \
  | 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: bd27a3c9ee839ab3fea064ce71bd239c16ea896f1c6db6e41c934bbd19d95922

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8533bc97a16b56493832909ff3471493d97cb3b63182bbbf1245729a27179e1a",
    "cross_cats_sorted": [
      "gr-qc",
      "math.AP",
      "math.MP"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math-ph",
    "submitted_at": "2013-06-01T20:57:47Z",
    "title_canon_sha256": "b578a433262d1cd49376e060b20c4f6611fb608fd8e85d4a57f1d7836a796bcf"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1306.0149",
    "kind": "arxiv",
    "version": 2
  }
}