Pith Number

pith:PWS7KKAE

pith:2019:PWS7KKAEAX62Q2DNYQ2IAOXIUE

not attested not anchored not stored refs pending

The Bilinear Strategy for Calder\'on's Problem

Felipe Ponce-Vanegas (Basque Center for Applied Mathematics)

arxiv:1908.04050 v1 · 2019-08-12 · math.AP · math.CA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{PWS7KKAEAX62Q2DNYQ2IAOXIUE}

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.

Cited by

1 paper in Pith

Recovery of the Derivative of the Conductivity at the Boundary

Receipt and verification

First computed	2026-07-05T03:15:26.420670Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7da5f5280405fda8686dc434803ae8a1012be0123cfee048a0c17f45da95baa0

Aliases

arxiv: 1908.04050 · arxiv_version: 1908.04050v1 · doi: 10.48550/arxiv.1908.04050 · pith_short_12: PWS7KKAEAX62 · pith_short_16: PWS7KKAEAX62Q2DN · pith_short_8: PWS7KKAE

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/PWS7KKAEAX62Q2DNYQ2IAOXIUE \
  | 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: 7da5f5280405fda8686dc434803ae8a1012be0123cfee048a0c17f45da95baa0

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ef0e1961be012c76faf7e7bffe91b10f188392374b802754f20f73b6ed095748",
    "cross_cats_sorted": [
      "math.CA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AP",
    "submitted_at": "2019-08-12T08:27:40Z",
    "title_canon_sha256": "a09b1e3075a18579f016c78f0e4600b9163793cb99137d0c2abe700d6ad47199"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1908.04050",
    "kind": "arxiv",
    "version": 1
  }
}