Pith Number

pith:JYDVZP6O

pith:2018:JYDVZP6OMY4FAVCCUF2QEYNRL3

not attested not anchored not stored refs pending

Accelerating the iterative solution of convection-diffusion problems using singular value decomposition

Giuseppe Pitton, Luca Heltai

arxiv:1807.09467 v1 · 2018-07-25 · math.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{JYDVZP6OMY4FAVCCUF2QEYNRL3}

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	2026-05-18T00:09:51.241597Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

4e075cbfce6638505442a1750261b15ef826a20688c9b4a2034521dc3919bdd7

Aliases

arxiv: 1807.09467 · arxiv_version: 1807.09467v1 · doi: 10.48550/arxiv.1807.09467 · pith_short_12: JYDVZP6OMY4F · pith_short_16: JYDVZP6OMY4FAVCC · pith_short_8: JYDVZP6O

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/JYDVZP6OMY4FAVCCUF2QEYNRL3 \
  | 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: 4e075cbfce6638505442a1750261b15ef826a20688c9b4a2034521dc3919bdd7

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8c4ca5078526760ebefd3581f05ae2803bfdfdf449d90c690d9e610ab3f3e0f9",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2018-07-25T08:02:25Z",
    "title_canon_sha256": "468d1a4805146a12c96da3f92ce06c186410114a3e5b720a2cb9f4357272502e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1807.09467",
    "kind": "arxiv",
    "version": 1
  }
}