Pith Number

pith:YLH5P7PI

pith:2015:YLH5P7PIBVVRD2TTCPQFG4SAL7

not attested not anchored not stored refs pending

Noether Symmetries of Bianchi Type II Spacetime Metrics

Ashfaque H. Bokhari, F. D. Zaman, Hassan Azad, Mahmood Rajih Tarayrah

arxiv:1502.02138 v1 · 2015-02-07 · math-ph · math.MP

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{YLH5P7PIBVVRD2TTCPQFG4SAL7}

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	2026-05-18T02:27:43.549522Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c2cfd7fde80d6b11ea7313e05372405fcc92628c7e3def781e969bbdb3862c7d

Aliases

arxiv: 1502.02138 · arxiv_version: 1502.02138v1 · doi: 10.48550/arxiv.1502.02138 · pith_short_12: YLH5P7PIBVVR · pith_short_16: YLH5P7PIBVVRD2TT · pith_short_8: YLH5P7PI

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/YLH5P7PIBVVRD2TTCPQFG4SAL7 \
  | 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: c2cfd7fde80d6b11ea7313e05372405fcc92628c7e3def781e969bbdb3862c7d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "26bb943845ca1ffecba8308895b8ff369bf97135b231ecd749e0e18005134494",
    "cross_cats_sorted": [
      "math.MP"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math-ph",
    "submitted_at": "2015-02-07T13:02:20Z",
    "title_canon_sha256": "2334d54d4a64881c124eb068633a7b1bae0e88e79991aa6c9c37d1a6d1187c11"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1502.02138",
    "kind": "arxiv",
    "version": 1
  }
}