Pith Number

pith:QN5ENEYZ

pith:2019:QN5ENEYZ2SJYIRWOLIXXOBL2HY

not attested not anchored not stored refs pending

A sparse FFT approach for ODE with random coefficients

Daniel Potts, Lutz K\"ammerer, Maximilian Bochmann

arxiv:1901.01600 v2 · 2019-01-06 · 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{QN5ENEYZ2SJYIRWOLIXXOBL2HY}

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	2026-05-17T23:40:33.773241Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

837a469319d4938446ce5a2f77057a3e1f021ec82c6c4523dc3e7847dcfb7a70

Aliases

arxiv: 1901.01600 · arxiv_version: 1901.01600v2 · doi: 10.48550/arxiv.1901.01600 · pith_short_12: QN5ENEYZ2SJY · pith_short_16: QN5ENEYZ2SJYIRWO · pith_short_8: QN5ENEYZ

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/QN5ENEYZ2SJYIRWOLIXXOBL2HY \
  | 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: 837a469319d4938446ce5a2f77057a3e1f021ec82c6c4523dc3e7847dcfb7a70

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6bb5a493d576fb758a4d7115b6d4d71fbc23a2c813fcb36bad789ab482da2382",
    "cross_cats_sorted": [
      "cs.NA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2019-01-06T19:54:46Z",
    "title_canon_sha256": "53d2bd23c2cf33bc3625a175262909947d4f99571ae821021e03545a1cec84b2"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1901.01600",
    "kind": "arxiv",
    "version": 2
  }
}