Pith Number

pith:ZD36AYKN

pith:2014:ZD36AYKNAPOW3ACP23VUP4DO3E

not attested not anchored not stored refs pending

Equivalence groupoids of classes of linear ordinary differential equations and their group classification

Nataliya M. Shapoval, Roman O. Popovych, Vyacheslav M. Boyko

arxiv:1403.6062 v2 · 2014-03-24 · math.CA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{ZD36AYKNAPOW3ACP23VUP4DO3E}

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	2026-05-18T01:34:30.130544Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c8f7e0614d03dd6d804fd6eb47f06ed916f7beedc26e24b6a6c313e6c052a35d

Aliases

arxiv: 1403.6062 · arxiv_version: 1403.6062v2 · doi: 10.48550/arxiv.1403.6062 · pith_short_12: ZD36AYKNAPOW · pith_short_16: ZD36AYKNAPOW3ACP · pith_short_8: ZD36AYKN

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/ZD36AYKNAPOW3ACP23VUP4DO3E \
  | 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: c8f7e0614d03dd6d804fd6eb47f06ed916f7beedc26e24b6a6c313e6c052a35d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1164151609f27fb223372170bf9f24c1a9d35aacffcf2e7ba611b07b19afb157",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CA",
    "submitted_at": "2014-03-24T17:58:51Z",
    "title_canon_sha256": "125b7909734bf74b1289effcf044537d4b9939020abfa4ec352000aff83ce8fe"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1403.6062",
    "kind": "arxiv",
    "version": 2
  }
}