Pith Number

pith:52KEWQYS

pith:2016:52KEWQYSVFIPCWBSR6E5G7H6RT

not attested not anchored not stored refs pending

A globally convergent method for a 3-D inverse medium problem for the generalized Helmholtz equation

Hui Liu, Loc H. Nguyen, Michael V. Klibanov

arxiv:1605.06147 v1 · 2016-05-13 · math.NA · math-ph · math.MP

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{52KEWQYSVFIPCWBSR6E5G7H6RT}

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	2026-05-18T01:14:19.851836Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ee944b4312a950f158328f89d37cfe8cc3c8a5c369f541b834dbaa4b03f14d6c

Aliases

arxiv: 1605.06147 · arxiv_version: 1605.06147v1 · doi: 10.48550/arxiv.1605.06147 · pith_short_12: 52KEWQYSVFIP · pith_short_16: 52KEWQYSVFIPCWBS · pith_short_8: 52KEWQYS

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/52KEWQYSVFIPCWBSR6E5G7H6RT \
  | 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: ee944b4312a950f158328f89d37cfe8cc3c8a5c369f541b834dbaa4b03f14d6c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d69d6ea062d244126a0f34ec12aed39736e7315b484ea8ea0fa48a9d143f4cd5",
    "cross_cats_sorted": [
      "math-ph",
      "math.MP"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2016-05-13T03:36:05Z",
    "title_canon_sha256": "4be74e4764b3c2dfbfec949cde58c8daf8707d3ae8ed1985d1da3829132fd5e8"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1605.06147",
    "kind": "arxiv",
    "version": 1
  }
}