Pith Number

pith:O3QFR2NJ

pith:2015:O3QFR2NJD2W4ORUB7HVT5DLTYM

not attested not anchored not stored refs pending

Two-oscillator Kantowski-Sachs model of the Schwarzschild black hole interior

Darko Radovancevic, Goran S. Djordjevic, Ljubisa Nesic

arxiv:1510.00887 v1 · 2015-10-04 · 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{O3QFR2NJD2W4ORUB7HVT5DLTYM}

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	2026-05-18T00:50:43.014355Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

76e058e9a91eadc74681f9eb3e8d73c33b7a85740a4cfbee75fc4e4278dd0601

Aliases

arxiv: 1510.00887 · arxiv_version: 1510.00887v1 · doi: 10.48550/arxiv.1510.00887 · pith_short_12: O3QFR2NJD2W4 · pith_short_16: O3QFR2NJD2W4ORUB · pith_short_8: O3QFR2NJ

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/O3QFR2NJD2W4ORUB7HVT5DLTYM \
  | 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: 76e058e9a91eadc74681f9eb3e8d73c33b7a85740a4cfbee75fc4e4278dd0601

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "029f750627f5a090109088e7bdfa437d511a2e06b70cdad724e57ca0ad54a4a2",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2015-10-04T00:03:09Z",
    "title_canon_sha256": "184836d28918dfad604a8da1b7a519306b92476bfa0aeb35f3927d185dfb2fbf"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1510.00887",
    "kind": "arxiv",
    "version": 1
  }
}