Pith Number

pith:DFRYP22O

pith:2018:DFRYP22O75HPON6BTMPNFZTYJC

not attested not anchored not stored refs pending

Spectral Theory Approach for a Class of Radial Indefinite Variational Problems

Liliane Maia, Mayra Soares

arxiv:1808.06204 v1 · 2018-08-19 · 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{DFRYP22O75HPON6BTMPNFZTYJC}

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	2026-05-18T00:07:45.757408Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

196387eb4eff4ef737c19b1ed2e67848ba938efe8379a22c32abf7fdfb223e04

Aliases

arxiv: 1808.06204 · arxiv_version: 1808.06204v1 · doi: 10.48550/arxiv.1808.06204 · pith_short_12: DFRYP22O75HP · pith_short_16: DFRYP22O75HPON6B · pith_short_8: DFRYP22O

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/DFRYP22O75HPON6BTMPNFZTYJC \
  | 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: 196387eb4eff4ef737c19b1ed2e67848ba938efe8379a22c32abf7fdfb223e04

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1efb86698ee4432857c5c0040a79234dc3612a171083ffde1b84e21134f2295d",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AP",
    "submitted_at": "2018-08-19T12:56:03Z",
    "title_canon_sha256": "a8185eee9f271fa359be98d71e115ae69917de35e45bd6c5d78f4dec8a4a37e3"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1808.06204",
    "kind": "arxiv",
    "version": 1
  }
}