Pith Number

pith:5GRHJQL3

pith:2018:5GRHJQL3G7KKTN52EVVZBKWJVE

not attested not anchored not stored refs pending

Positive solutions for nonvariational Robin problems

Du\v{s}an D. Repov\v{s}, Nikolaos S. Papageorgiou, Vicen\c{t}iu D. R\u{a}dulescu

arxiv:1807.02831 v1 · 2018-07-08 · 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{5GRHJQL3G7KKTN52EVVZBKWJVE}

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	2026-05-18T00:11:13.559781Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e9a274c17b37d4a9b7ba256b90aac9a93e5ba1e1e485dba63052c7ef25f5c460

Aliases

arxiv: 1807.02831 · arxiv_version: 1807.02831v1 · doi: 10.48550/arxiv.1807.02831 · pith_short_12: 5GRHJQL3G7KK · pith_short_16: 5GRHJQL3G7KKTN52 · pith_short_8: 5GRHJQL3

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/5GRHJQL3G7KKTN52EVVZBKWJVE \
  | 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: e9a274c17b37d4a9b7ba256b90aac9a93e5ba1e1e485dba63052c7ef25f5c460

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1de7388d89d37c04a6897deb0697f478b895374eeb9b1f6d8d9985f94d4b851d",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AP",
    "submitted_at": "2018-07-08T14:31:40Z",
    "title_canon_sha256": "bc68cc00dc695d81883b486d9dd7adbfde54d018cb644cacbf4da31b50fca5ab"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1807.02831",
    "kind": "arxiv",
    "version": 1
  }
}