Pith Number

pith:LSPKBPBU

pith:1994:LSPKBPBUJ6HHPTJ27WVDKEG6MQ

not attested not anchored not stored refs pending

Observables for Two-Dimensional Black Holes

D. Louis-Martinez, G. Kunstatter, J. Gegenberg

arxiv:gr-qc/9408015 v1 · 1994-08-11 · 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{LSPKBPBUJ6HHPTJ27WVDKEG6MQ}

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	2026-05-18T01:08:07.995394Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

5c9ea0bc344f8e77cd3afdaa3510de640b7b92601dbd53de555684155d28e335

Aliases

arxiv: gr-qc/9408015 · arxiv_version: gr-qc/9408015v1 · doi: 10.48550/arxiv.gr-qc/9408015 · pith_short_12: LSPKBPBUJ6HH · pith_short_16: LSPKBPBUJ6HHPTJ2 · pith_short_8: LSPKBPBU

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/LSPKBPBUJ6HHPTJ27WVDKEG6MQ \
  | 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: 5c9ea0bc344f8e77cd3afdaa3510de640b7b92601dbd53de555684155d28e335

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "dc6b97482b40d3472e438ac7f4da856a6335f365f862c0140f58d08b956682c9",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "gr-qc",
    "submitted_at": "1994-08-11T17:15:00Z",
    "title_canon_sha256": "f023cf0e0909664332f1d4f415c35205ed1a80c4fe7eb2218e4088308d3bdc79"
  },
  "schema_version": "1.0",
  "source": {
    "id": "gr-qc/9408015",
    "kind": "arxiv",
    "version": 1
  }
}