Pith Number

pith:YWBS2I7B

pith:2019:YWBS2I7BLTFYXIHSTVZWBG3RBI

not attested not anchored not stored refs pending

On reconstruction from a partial knowledge of the Neumann-to-Dirichlet operator

Masaru Ikehata

arxiv:1902.05186 v1 · 2019-02-14 · 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{YWBS2I7BLTFYXIHSTVZWBG3RBI}

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	2026-05-17T23:54:01.665832Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c5832d23e15ccb8ba0f29d73609b710a23f0e9ffaf1f879611659a354fd4eb08

Aliases

arxiv: 1902.05186 · arxiv_version: 1902.05186v1 · doi: 10.48550/arxiv.1902.05186 · pith_short_12: YWBS2I7BLTFY · pith_short_16: YWBS2I7BLTFYXIHS · pith_short_8: YWBS2I7B

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/YWBS2I7BLTFYXIHSTVZWBG3RBI \
  | 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: c5832d23e15ccb8ba0f29d73609b710a23f0e9ffaf1f879611659a354fd4eb08

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "042f9df1ab5174ce310205b07b1fddb949293d9a03b1d146e8cb45257fcb40e4",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AP",
    "submitted_at": "2019-02-14T01:59:15Z",
    "title_canon_sha256": "6bc4f5f957b738cb0e25dd539f1342e05522145571bb37293d27a3f479af8edb"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1902.05186",
    "kind": "arxiv",
    "version": 1
  }
}