Pith Number

pith:5KI2OBR3

pith:1996:5KI2OBR3QZYT2OP273HEPBNB3X

not attested not anchored not stored refs pending

Noether symmetries in Bianchi universes

Claudio Rubano, Giuseppe Marmo, Paolo Scudellaro, Salvatore Capozziello

arxiv:gr-qc/9606050 v1 · 1996-06-17 · 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{5KI2OBR3QZYT2OP273HEPBNB3X}

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	2026-05-18T04:21:51.978159Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ea91a7063b86713d39fafece4785a1ddeefced5204dc2d0f1563161dbbae8867

Aliases

arxiv: gr-qc/9606050 · arxiv_version: gr-qc/9606050v1 · doi: 10.48550/arxiv.gr-qc/9606050 · pith_short_12: 5KI2OBR3QZYT · pith_short_16: 5KI2OBR3QZYT2OP2 · pith_short_8: 5KI2OBR3

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/5KI2OBR3QZYT2OP273HEPBNB3X \
  | 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: ea91a7063b86713d39fafece4785a1ddeefced5204dc2d0f1563161dbbae8867

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0ccef99c939757a1dd99ba06604447c94ef5bb86f078d13356385b88ea0f762a",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "gr-qc",
    "submitted_at": "1996-06-17T13:47:52Z",
    "title_canon_sha256": "1be79d7eca3ca7edb16223e61790b923587a1a8dbee55da7fa5bf8327a17ae9a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "gr-qc/9606050",
    "kind": "arxiv",
    "version": 1
  }
}