Pith Number

pith:LNJF4PKX

pith:2008:LNJF4PKXMBROCOKJF4AQO7UXQT

not attested not anchored not stored refs pending

Regular black holes in an asymptotically de Sitter universe

Dariusz Tryniecki, Jerzy Matyjasek, Mariusz Klimek

arxiv:0809.2275 v1 · 2008-09-12 · 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{LNJF4PKXMBROCOKJF4AQO7UXQT}

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	2026-07-04T15:37:39.385779Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

5b525e3d576062e139492f01077e9784cac893d6500ec4a2965f285cd4ac6bb6

Aliases

arxiv: 0809.2275 · arxiv_version: 0809.2275v1 · doi: 10.48550/arxiv.0809.2275 · pith_short_12: LNJF4PKXMBRO · pith_short_16: LNJF4PKXMBROCOKJ · pith_short_8: LNJF4PKX

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/LNJF4PKXMBROCOKJF4AQO7UXQT \
  | 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: 5b525e3d576062e139492f01077e9784cac893d6500ec4a2965f285cd4ac6bb6

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1fd4bc825a5ee6b3cd26539ea8da2c5f2b85c56add250c2c6e92da1aad443c7c",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2008-09-12T19:43:35Z",
    "title_canon_sha256": "e04ff55f35a047790b8b0937ca1a921f718f892c091aac51430fe690b5c7931f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0809.2275",
    "kind": "arxiv",
    "version": 1
  }
}