Pith Number

pith:FZKWS4ON

pith:2015:FZKWS4ONR3REG3OA7J4E2KUSPK

not attested not anchored not stored refs pending

New Development of the Enclosure Method for Inverse Obstacle Scattering

Masaru Ikehata

arxiv:1504.04072 v4 · 2015-04-16 · math.AP · 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{FZKWS4ONR3REG3OA7J4E2KUSPK}

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	2026-05-18T01:24:20.212113Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2e556971cd8ee2436dc0fa784d2a927ab738883dc29c795b4fb8e2c77371757c

Aliases

arxiv: 1504.04072 · arxiv_version: 1504.04072v4 · doi: 10.48550/arxiv.1504.04072 · pith_short_12: FZKWS4ONR3RE · pith_short_16: FZKWS4ONR3REG3OA · pith_short_8: FZKWS4ON

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/FZKWS4ONR3REG3OA7J4E2KUSPK \
  | 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: 2e556971cd8ee2436dc0fa784d2a927ab738883dc29c795b4fb8e2c77371757c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "98c9a72156b8843ee600a9e58a702fb040c530616d4c4bad2f0ae54502c59877",
    "cross_cats_sorted": [
      "math-ph",
      "math.MP"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AP",
    "submitted_at": "2015-04-16T00:37:16Z",
    "title_canon_sha256": "c80caf0725a325dcf85292a393b2d2d57797dbc0e17773d366b900d7430cf37e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1504.04072",
    "kind": "arxiv",
    "version": 4
  }
}