Pith Number

pith:FEGS3C6Z

pith:2013:FEGS3C6ZYS3CK3JYOHL4BJLU3E

not attested not anchored not stored refs pending

Inside the degenerate horizons of regular black holes

Dariusz Tryniecki, Jerzy Matyjasek, Pawel Sadurski

arxiv:1304.6347 v2 · 2013-04-23 · 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{FEGS3C6ZYS3CK3JYOHL4BJLU3E}

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	2026-05-18T03:07:01.864264Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

290d2d8bd9c4b6256d3871d7c0a574d906e6b7bde2048f9196856ebe7e089f94

Aliases

arxiv: 1304.6347 · arxiv_version: 1304.6347v2 · doi: 10.48550/arxiv.1304.6347 · pith_short_12: FEGS3C6ZYS3C · pith_short_16: FEGS3C6ZYS3CK3JY · pith_short_8: FEGS3C6Z

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/FEGS3C6ZYS3CK3JYOHL4BJLU3E \
  | 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: 290d2d8bd9c4b6256d3871d7c0a574d906e6b7bde2048f9196856ebe7e089f94

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f50fe003a33a590526ca3e27b22ffc66355c42f5656d059968e375326fb01ba7",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2013-04-23T16:49:23Z",
    "title_canon_sha256": "9e02fa201e243a3ddbe838f9cf7e1e8e7e207ba66c5c2a6d7599af678700ec8a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1304.6347",
    "kind": "arxiv",
    "version": 2
  }
}