Pith Number

pith:PTF7UYHG

pith:2017:PTF7UYHGTWLYBAQHHJJ6OIBBLU

not attested not anchored not stored refs pending

Expanding, shearing and accelerating isotropic plane symmetric universe with conformal Kasner geometry

Megandhren Govender, Narenee Mewalal, Sudan Hansraj

arxiv:1709.07683 v1 · 2017-09-22 · 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{PTF7UYHGTWLYBAQHHJJ6OIBBLU}

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	2026-05-18T00:07:11.870625Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7ccbfa60e69d978082073a53e720215d0052e03f87852a6b7928f6af260ac2dc

Aliases

arxiv: 1709.07683 · arxiv_version: 1709.07683v1 · doi: 10.48550/arxiv.1709.07683 · pith_short_12: PTF7UYHGTWLY · pith_short_16: PTF7UYHGTWLYBAQH · pith_short_8: PTF7UYHG

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/PTF7UYHGTWLYBAQHHJJ6OIBBLU \
  | 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: 7ccbfa60e69d978082073a53e720215d0052e03f87852a6b7928f6af260ac2dc

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4f64371d80b169cef1c8565d9b4cd1cbb03c98b374c6ae5e5fe6462794c96cbb",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2017-09-22T10:40:10Z",
    "title_canon_sha256": "1971a36db1b708a77da525483f250da7672c6232cda1d1b2cf883e78e066f678"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1709.07683",
    "kind": "arxiv",
    "version": 1
  }
}