Pith Number

pith:WHTH4RMT

pith:2019:WHTH4RMTFM2R3EAUUYDEKCSB7X

not attested not anchored not stored refs pending

Stable determination of polygonal inclusions in Calder\'on's problem by a single partial boundary measurement

Chun-Hsiang Tsou, Hongyu Liu

arxiv:1902.04462 v1 · 2019-02-12 · 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{WHTH4RMTFM2R3EAUUYDEKCSB7X}

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	2026-05-17T23:54:12.211054Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b1e67e45932b351d9014a606450a41fdfa6d2174d627b42fed55bcb5af53d652

Aliases

arxiv: 1902.04462 · arxiv_version: 1902.04462v1 · doi: 10.48550/arxiv.1902.04462 · pith_short_12: WHTH4RMTFM2R · pith_short_16: WHTH4RMTFM2R3EAU · pith_short_8: WHTH4RMT

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/WHTH4RMTFM2R3EAUUYDEKCSB7X \
  | 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: b1e67e45932b351d9014a606450a41fdfa6d2174d627b42fed55bcb5af53d652

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e2ac46187c36464a7846f07c1c7e0d144d02172c170b59757c03953259af3d3e",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AP",
    "submitted_at": "2019-02-12T16:04:46Z",
    "title_canon_sha256": "17b00e2d8ea0c47d02b232574c9c34792e6690e48b62cf90b303cbec92926cb8"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1902.04462",
    "kind": "arxiv",
    "version": 1
  }
}