Pith Number

pith:DM4WLDZ5

pith:2010:DM4WLDZ5EBYC5AH44HVV7NMSSV

not attested not anchored not stored refs pending

A note on the enclosure method for an inverse obstacle scattering problem with a single point source

Masaru Ikehata

arxiv:1002.4457 v3 · 2010-02-24 · 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{DM4WLDZ5EBYC5AH44HVV7NMSSV}

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	2026-05-18T04:12:44.888419Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1b39658f3d20702e80fce1eb5fb59295664eff5001b7f85600d36f620ddf908a

Aliases

arxiv: 1002.4457 · arxiv_version: 1002.4457v3 · doi: 10.48550/arxiv.1002.4457 · pith_short_12: DM4WLDZ5EBYC · pith_short_16: DM4WLDZ5EBYC5AH4 · pith_short_8: DM4WLDZ5

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/DM4WLDZ5EBYC5AH44HVV7NMSSV \
  | 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: 1b39658f3d20702e80fce1eb5fb59295664eff5001b7f85600d36f620ddf908a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ef57e045c1d5215769f3dd7ba69f4a2d3792f41504d67b7360c5d6e9b0f4ac3b",
    "cross_cats_sorted": [
      "math-ph",
      "math.MP"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AP",
    "submitted_at": "2010-02-24T02:52:04Z",
    "title_canon_sha256": "c494a7c2eeac796f9d3334b5fc9f8770c03ddf3821cd20a0c4a4cba5e2da127f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1002.4457",
    "kind": "arxiv",
    "version": 3
  }
}