Pith Number

pith:LYGOE3ZB

pith:2019:LYGOE3ZBQL7PKGTTXIOBIPTWJ4

not attested not anchored not stored refs pending

Numerical Analysis of Sparse Initial Data Identification for Parabolic Problems

Boris Vexler, Daniel Walter, Dmitriy Leykekhman

arxiv:1905.01226 v1 · 2019-05-03 · math.OC

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{LYGOE3ZBQL7PKGTTXIOBIPTWJ4}

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	2026-05-17T23:47:06.454114Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

5e0ce26f2182fef51a73ba1c143e764f0ef35ed8dc8572b548a816e771072bb2

Aliases

arxiv: 1905.01226 · arxiv_version: 1905.01226v1 · doi: 10.48550/arxiv.1905.01226 · pith_short_12: LYGOE3ZBQL7P · pith_short_16: LYGOE3ZBQL7PKGTT · pith_short_8: LYGOE3ZB

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/LYGOE3ZBQL7PKGTTXIOBIPTWJ4 \
  | 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: 5e0ce26f2182fef51a73ba1c143e764f0ef35ed8dc8572b548a816e771072bb2

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "38f9d83bd4d2594bd63b595884328a898b5502f8a839ceaa3b0eff924aab64a9",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.OC",
    "submitted_at": "2019-05-03T15:35:54Z",
    "title_canon_sha256": "0506aeeeb62e6c786a3243789f6b85cd2695fd407c59e586e3d668f0e9122bca"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1905.01226",
    "kind": "arxiv",
    "version": 1
  }
}