Pith Number

pith:4IMU7YYB

pith:2017:4IMU7YYB2ZWWFF5Y7YFAGJREBX

not attested not anchored not stored refs pending

Remarks on regular black holes

Anais Smailagic, Euro Spallucci, Piero Nicolini

arxiv:1705.05359 v2 · 2017-05-15 · 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{4IMU7YYB2ZWWFF5Y7YFAGJREBX}

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	2026-05-18T00:33:32.040145Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e2194fe301d66d6297b8fe0a0326240dc40f4a5ea2ed1a52c3a745f946ba2801

Aliases

arxiv: 1705.05359 · arxiv_version: 1705.05359v2 · doi: 10.48550/arxiv.1705.05359 · pith_short_12: 4IMU7YYB2ZWW · pith_short_16: 4IMU7YYB2ZWWFF5Y · pith_short_8: 4IMU7YYB

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/4IMU7YYB2ZWWFF5Y7YFAGJREBX \
  | 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: e2194fe301d66d6297b8fe0a0326240dc40f4a5ea2ed1a52c3a745f946ba2801

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "39f940da31a3836181205535c9c424a34e006e1c10081923b6bf93eea086990f",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2017-05-15T17:54:23Z",
    "title_canon_sha256": "70c71b13e89b182a6c5090b48e2a36f86f7be8501002ec7d186fe389f9b031dd"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1705.05359",
    "kind": "arxiv",
    "version": 2
  }
}