Pith Number

pith:5L4JA53T

pith:2014:5L4JA53TOPVY4JIYCA5LEGLJOX

not attested not anchored not stored refs pending

Kretschmann Invariant and Relations Between Spacetime Singularities, Entropy and Information

Ioannis Gkigkitzis, Ioannis Haranas, Omiros Ragos

arxiv:1406.1581 v2 · 2014-06-06 · 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{5L4JA53TOPVY4JIYCA5LEGLJOX}

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.

Cited by

2 papers in Pith

Families of regular spacetimes and energy conditions

Receipt and verification

First computed	2026-05-18T02:50:12.538357Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

eaf890777373eb8e2518103ab2196975d1f12bcb66dd628688d0aea5fa8cadd1

Aliases

arxiv: 1406.1581 · arxiv_version: 1406.1581v2 · doi: 10.48550/arxiv.1406.1581 · pith_short_12: 5L4JA53TOPVY · pith_short_16: 5L4JA53TOPVY4JIY · pith_short_8: 5L4JA53T

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/5L4JA53TOPVY4JIYCA5LEGLJOX \
  | 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: eaf890777373eb8e2518103ab2196975d1f12bcb66dd628688d0aea5fa8cadd1

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c9203913f71fc6dcba9ceb9da31101b24238bb45edf9b6d89196cb543a904ffb",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2014-06-06T04:41:48Z",
    "title_canon_sha256": "e2602792715af7b129a91fa305ba8770ce8cdc5cdfdfb5957cb977e46bf68a4d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1406.1581",
    "kind": "arxiv",
    "version": 2
  }
}