Pith Number

pith:SZNHOW56

pith:2013:SZNHOW56NVFLAY25QNOMGNYDTH

not attested not anchored not stored refs pending

Riemann-Hilbert Approach to the Helmholtz Equation in a quarter-plane. Revisited

Alexander Its, Elizabeth Its

arxiv:1311.2659 v1 · 2013-11-12 · 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{SZNHOW56NVFLAY25QNOMGNYDTH}

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	2026-05-18T03:07:22.227204Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

965a775bbe6d4ab0635d835cc3370399eaa5ac4007be537606c027ab965a9f56

Aliases

arxiv: 1311.2659 · arxiv_version: 1311.2659v1 · doi: 10.48550/arxiv.1311.2659 · pith_short_12: SZNHOW56NVFL · pith_short_16: SZNHOW56NVFLAY25 · pith_short_8: SZNHOW56

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/SZNHOW56NVFLAY25QNOMGNYDTH \
  | 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: 965a775bbe6d4ab0635d835cc3370399eaa5ac4007be537606c027ab965a9f56

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "bae030c45b118e7be745e8b2eb8448cba582684632564bbd4b3e8b1d5e2621e7",
    "cross_cats_sorted": [
      "math.MP"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math-ph",
    "submitted_at": "2013-11-12T02:17:36Z",
    "title_canon_sha256": "dc2c8706aa3e3cecb44764422bc59f9c5ad1924a5ba6ec1349f9134545e892f5"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1311.2659",
    "kind": "arxiv",
    "version": 1
  }
}