Pith Number

pith:RY5IZ6ZU

pith:2015:RY5IZ6ZURQJ6RDIH7PZ7S3SO4O

not attested not anchored not stored refs pending

Skew-selfadjoint Dirac systems with rational rectangular Weyl functions: explicit solutions of direct and inverse problems and integrable wave equations

A.L. Sakhnovich, B. Fritzsche, B. Kirstein, M.A. Kaashoek

arxiv:1501.00395 v1 · 2015-01-02 · math.SP · math.AP · math.CA · math.DS · math.OC

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{RY5IZ6ZURQJ6RDIH7PZ7S3SO4O}

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	2026-05-18T01:00:40.755363Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8e3a8cfb348c13e88d07fbf3f96e4ee3978e17fdc945dc1a41b2a50d4a7617b9

Aliases

arxiv: 1501.00395 · arxiv_version: 1501.00395v1 · doi: 10.48550/arxiv.1501.00395 · pith_short_12: RY5IZ6ZURQJ6 · pith_short_16: RY5IZ6ZURQJ6RDIH · pith_short_8: RY5IZ6ZU

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/RY5IZ6ZURQJ6RDIH7PZ7S3SO4O \
  | 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: 8e3a8cfb348c13e88d07fbf3f96e4ee3978e17fdc945dc1a41b2a50d4a7617b9

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b0ce329893789fc48941085a0ae02ec23c2f8b1d859cf39ce3da99de5e906365",
    "cross_cats_sorted": [
      "math.AP",
      "math.CA",
      "math.DS",
      "math.OC"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.SP",
    "submitted_at": "2015-01-02T13:04:44Z",
    "title_canon_sha256": "9bad3ad3f7ffa36122088e850b7397b726be842521b62b79a526dc9021efee83"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1501.00395",
    "kind": "arxiv",
    "version": 1
  }
}