Pith Number

pith:KUF4FZ57

pith:2019:KUF4FZ57FZ4TTPG2TTW2HNMAYZ

not attested not anchored not stored refs pending

Conditional stability for backward parabolic operators with Osgood continuous coefficients

Daniele Casagrande, Daniele Del Santo, Martino Prizzi

arxiv:1902.08573 v1 · 2019-02-18 · math.AP

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{KUF4FZ57FZ4TTPG2TTW2HNMAYZ}

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	2026-05-17T23:41:21.793698Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

550bc2e7bf2e7939bcda9ceda3b580c67f2e18ed7f853bebc99fadaac0c1db36

Aliases

arxiv: 1902.08573 · arxiv_version: 1902.08573v1 · doi: 10.48550/arxiv.1902.08573 · pith_short_12: KUF4FZ57FZ4T · pith_short_16: KUF4FZ57FZ4TTPG2 · pith_short_8: KUF4FZ57

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/KUF4FZ57FZ4TTPG2TTW2HNMAYZ \
  | 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: 550bc2e7bf2e7939bcda9ceda3b580c67f2e18ed7f853bebc99fadaac0c1db36

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "68c64f89a272c565ecd235b85cfaabece986dcc02d0ceb3a9f528493526b2f2d",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AP",
    "submitted_at": "2019-02-18T09:04:57Z",
    "title_canon_sha256": "12078f8b52908fc3de8eb2f8d448c14f989a5b3c434ae7c807c84e62f7793c82"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1902.08573",
    "kind": "arxiv",
    "version": 1
  }
}