Pith Number

pith:CY7QMKDO

pith:2019:CY7QMKDOEWXXGADOGDTMOM4LEP

not attested not anchored not stored refs pending

Sign-changing bubble-tower solutions to fractional semilinear elliptic problems

Alessandro Iacopetti, Gabriele Cora

arxiv:1904.02738 v1 · 2019-04-04 · 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{CY7QMKDOEWXXGADOGDTMOM4LEP}

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	2026-05-17T23:49:19.829986Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

163f06286e25af73006e30e6c7338b23cbb0dd8cd2457bdb1ceceba6eb5e509b

Aliases

arxiv: 1904.02738 · arxiv_version: 1904.02738v1 · doi: 10.48550/arxiv.1904.02738 · pith_short_12: CY7QMKDOEWXX · pith_short_16: CY7QMKDOEWXXGADO · pith_short_8: CY7QMKDO

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/CY7QMKDOEWXXGADOGDTMOM4LEP \
  | 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: 163f06286e25af73006e30e6c7338b23cbb0dd8cd2457bdb1ceceba6eb5e509b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0784090559f3d24c5c5e24ef3fdf304b65f857d53a3e63cdde52cf04c1665913",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AP",
    "submitted_at": "2019-04-04T18:24:14Z",
    "title_canon_sha256": "63b8f0a11e29943dbcaa10b46455719fdb2607ca92a5e385f6f9dde61ee70560"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1904.02738",
    "kind": "arxiv",
    "version": 1
  }
}