Pith Number

pith:EZJIHWJ7

pith:2026:EZJIHWJ727W45NFGROEJXTMQYD

not attested not anchored not stored refs pending

A novel time-domain iterative method for a three-dimensional inverse acoustic obstacle scattering problem

Heping Dong, Lu Zhao, Zhiyong Cheng

arxiv:2607.02286 v1 · 2026-07-02 · math.NA · cs.NA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{EZJIHWJ727W45NFGROEJXTMQYD}

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	2026-07-03T01:17:47.507219Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

265283d93fd7edceb4a68b889bcd90c0c1288651119bf9f216bdcbd8167405cf

Aliases

arxiv: 2607.02286 · arxiv_version: 2607.02286v1 · doi: 10.48550/arxiv.2607.02286 · pith_short_12: EZJIHWJ727W4 · pith_short_16: EZJIHWJ727W45NFG · pith_short_8: EZJIHWJ7

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/EZJIHWJ727W45NFGROEJXTMQYD \
  | 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: 265283d93fd7edceb4a68b889bcd90c0c1288651119bf9f216bdcbd8167405cf

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ad7c6ae1304743b431110195aef544e38f483d858050a5d7e153f88427880c98",
    "cross_cats_sorted": [
      "cs.NA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2026-07-02T15:04:23Z",
    "title_canon_sha256": "1074a91682bd07815441705e20cb1aec2726f861e3da9c088e0da9775361abf2"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2607.02286",
    "kind": "arxiv",
    "version": 1
  }
}