Pith Number

pith:FKDRMEJU

pith:2018:FKDRMEJUV6MP5UOODDXQKQXAK4

not attested not anchored not stored refs pending

Weakly coupled system of semilinear wave equations with distinct scale-invariant terms in the linear part

Alessandro Palmieri, Wenhui Chen

arxiv:1809.10103 v1 · 2018-09-26 · 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{FKDRMEJUV6MP5UOODDXQKQXAK4}

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	2026-05-17T23:47:30.183142Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2a87161134af98fed1ce18ef0542e057035dbc56fc09d85f2f15d16ccb032a35

Aliases

arxiv: 1809.10103 · arxiv_version: 1809.10103v1 · doi: 10.48550/arxiv.1809.10103 · pith_short_12: FKDRMEJUV6MP · pith_short_16: FKDRMEJUV6MP5UOO · pith_short_8: FKDRMEJU

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/FKDRMEJUV6MP5UOODDXQKQXAK4 \
  | 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: 2a87161134af98fed1ce18ef0542e057035dbc56fc09d85f2f15d16ccb032a35

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9f913e7f2144fdc3b83ca05b37085608e547f3e66e7131f4dccfa7f0a81a49dc",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AP",
    "submitted_at": "2018-09-26T16:24:56Z",
    "title_canon_sha256": "751740f635611134574b6debcc6c0d3e67c64fc0519f0397fa03057f2ed556a4"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1809.10103",
    "kind": "arxiv",
    "version": 1
  }
}