Pith Number

pith:SDZALKI7

pith:1993:SDZALKI7LBCHEAEBFGRJ6NZSRH

not attested not anchored not stored refs pending

A Nonsingular Two Dimensional Black Hole

M. Trodden (Brown University), R. Brandenberger (Brown University), V. Mukhanov (ETH Zuerich)

arxiv:hep-th/9305111 v1 · 1993-05-22 · hep-th · 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{SDZALKI7LBCHEAEBFGRJ6NZSRH}

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.

Cited by

1 paper in Pith

Obstructions to Minimal Regular Black Hole Cosmologies

Receipt and verification

First computed	2026-07-04T15:56:13.957805Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

90f205a91f584472008129a29f373289d777b22036a2fc9c5ed97307a8ff0e05

Aliases

arxiv: hep-th/9305111 · arxiv_version: hep-th/9305111v1 · doi: 10.48550/arxiv.hep-th/9305111 · pith_short_12: SDZALKI7LBCH · pith_short_16: SDZALKI7LBCHEAEB · pith_short_8: SDZALKI7

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/SDZALKI7LBCHEAEBFGRJ6NZSRH \
  | 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: 90f205a91f584472008129a29f373289d777b22036a2fc9c5ed97307a8ff0e05

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "545b2cb9d4ed646a9d30aa0057ce3b52b22fa8f91875ec82294c4e2ff3249420",
    "cross_cats_sorted": [
      "gr-qc"
    ],
    "license": "",
    "primary_cat": "hep-th",
    "submitted_at": "1993-05-22T14:17:18Z",
    "title_canon_sha256": "66a42cb5cf3aacbfe5b903134c8dc859a7adc4789c38b325083f2205b1d0889c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "hep-th/9305111",
    "kind": "arxiv",
    "version": 1
  }
}