Pith Number

pith:KE44EGXM

pith:2018:KE44EGXMSAG5FWSKJNC3F2SW5U

not attested not anchored not stored refs pending

On coupled systems of PDEs with unbounded coefficients

Luca Lorenzi, Luciana Angiuli

arxiv:1810.04097 v1 · 2018-10-09 · 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{KE44EGXMSAG5FWSKJNC3F2SW5U}

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	2026-05-18T00:03:42.282965Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

5139c21aec900dd2da4a4b45b2ea56ed0e9615a6ddb44ad73f1dc1e571867c5d

Aliases

arxiv: 1810.04097 · arxiv_version: 1810.04097v1 · doi: 10.48550/arxiv.1810.04097 · pith_short_12: KE44EGXMSAG5 · pith_short_16: KE44EGXMSAG5FWSK · pith_short_8: KE44EGXM

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/KE44EGXMSAG5FWSKJNC3F2SW5U \
  | 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: 5139c21aec900dd2da4a4b45b2ea56ed0e9615a6ddb44ad73f1dc1e571867c5d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8552d7ed4e5b765806afced3266fdf4be5a3210fea6968a98a5cc2ad05556561",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AP",
    "submitted_at": "2018-10-09T16:04:26Z",
    "title_canon_sha256": "b0acfec9fb99c3dababa28174de16531e219eb6b51ce202d6649d3be58e80b15"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1810.04097",
    "kind": "arxiv",
    "version": 1
  }
}