Pith Number

pith:Q6Y4KKYV

pith:2018:Q6Y4KKYV7BJ6THCF4SQSSYQXEM

not attested not anchored not stored refs pending

Unique continuation principles for a higher order fractional Laplace equation

Alberto Ferrero, Veronica Felli

arxiv:1809.09496 v1 · 2018-09-25 · 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{Q6Y4KKYV7BJ6THCF4SQSSYQXEM}

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	2026-05-18T00:04:51.022878Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

87b1c52b15f853e99c45e4a1296217231eb9a74277b9ab58d68ee2c4ca8af6fe

Aliases

arxiv: 1809.09496 · arxiv_version: 1809.09496v1 · doi: 10.48550/arxiv.1809.09496 · pith_short_12: Q6Y4KKYV7BJ6 · pith_short_16: Q6Y4KKYV7BJ6THCF · pith_short_8: Q6Y4KKYV

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/Q6Y4KKYV7BJ6THCF4SQSSYQXEM \
  | 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: 87b1c52b15f853e99c45e4a1296217231eb9a74277b9ab58d68ee2c4ca8af6fe

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f3424267425b64e781e31c9365f91ab12954999a4356970073ce83e987b130f3",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AP",
    "submitted_at": "2018-09-25T13:59:53Z",
    "title_canon_sha256": "1cb673d0b1226acf5b93dbfdae315ba4afb96ca4750fbc7cedaa7a9422d10bb8"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1809.09496",
    "kind": "arxiv",
    "version": 1
  }
}