Pith Number

pith:77UQUBKK

pith:2017:77UQUBKKXTNEOMHKQDCZV6EDUI

not attested not anchored not stored refs pending

Comparison of two classifications of a class of ODE's in the first case of intermediate degeneration

Ruslan Sharipov

arxiv:1705.01928 v1 · 2017-05-04 · 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{77UQUBKKXTNEOMHKQDCZV6EDUI}

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	2026-05-18T00:45:02.010157Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ffe90a054abcda4730ea80c59af883a23981c2473d210e0d03fcc25770d6d308

Aliases

arxiv: 1705.01928 · arxiv_version: 1705.01928v1 · doi: 10.48550/arxiv.1705.01928 · pith_short_12: 77UQUBKKXTNE · pith_short_16: 77UQUBKKXTNEOMHK · pith_short_8: 77UQUBKK

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/77UQUBKKXTNEOMHKQDCZV6EDUI \
  | 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: ffe90a054abcda4730ea80c59af883a23981c2473d210e0d03fcc25770d6d308

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b65b31e3fee38142c0e14e50e0dfd31a29f0f28ec6c17deae13bffe25d166755",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CA",
    "submitted_at": "2017-05-04T17:45:57Z",
    "title_canon_sha256": "85d8fbb700db2d8ad0d041ca340c0cebc79ff94b50209c9389133d34089383ab"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1705.01928",
    "kind": "arxiv",
    "version": 1
  }
}