Pith Number

pith:ULHLACZV

pith:2017:ULHLACZV36DMAALS72R5STGPVH

not attested not anchored not stored refs pending

Dynamical systems of null geodesics and solutions of Tomimatsu-Sato 2

Partha Guha, Sumanto Chanda

arxiv:1704.01830 v4 · 2017-03-29 · physics.gen-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{ULHLACZV36DMAALS72R5STGPVH}

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	2026-05-18T00:23:45.793469Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a2ceb00b35df86c00172fea3d94ccfa9dbda54509c4c01ff8fe6ba0c1da1cbc5

Aliases

arxiv: 1704.01830 · arxiv_version: 1704.01830v4 · doi: 10.48550/arxiv.1704.01830 · pith_short_12: ULHLACZV36DM · pith_short_16: ULHLACZV36DMAALS · pith_short_8: ULHLACZV

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/ULHLACZV36DMAALS72R5STGPVH \
  | 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: a2ceb00b35df86c00172fea3d94ccfa9dbda54509c4c01ff8fe6ba0c1da1cbc5

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9d6e36b500951a9e9ffae07693801d5dabe2506b1a399964ec9377020e13aa21",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.gen-ph",
    "submitted_at": "2017-03-29T16:22:57Z",
    "title_canon_sha256": "c400874754a7f1eb24390b59b8be6f45e0c26222e10fce7cd1e67471e10b0c62"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1704.01830",
    "kind": "arxiv",
    "version": 4
  }
}