Pith Number

pith:Q2TJU2SD

pith:2017:Q2TJU2SDWK2TZU7B56FO5O53HC

not attested not anchored not stored refs pending

Vico-Greengard-Ferrando quadratures in the tensor solver for integral equations

Ivan Oseledets, Maxim Rakhuba, Valentin Khrulkov

arxiv:1704.01669 v1 · 2017-04-05 · cs.NA · 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{Q2TJU2SDWK2TZU7B56FO5O53HC}

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	2026-05-18T00:46:54.633875Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

86a69a6a43b2b53cd3e1ef8aeebbbb38866dbf19df66705d779420ce6c7b9052

Aliases

arxiv: 1704.01669 · arxiv_version: 1704.01669v1 · doi: 10.48550/arxiv.1704.01669 · pith_short_12: Q2TJU2SDWK2T · pith_short_16: Q2TJU2SDWK2TZU7B · pith_short_8: Q2TJU2SD

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/Q2TJU2SDWK2TZU7B56FO5O53HC \
  | 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: 86a69a6a43b2b53cd3e1ef8aeebbbb38866dbf19df66705d779420ce6c7b9052

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "33b380c4338295e5ff5e0f547285e19195cc387a4352ac77952f97254fe7aec0",
    "cross_cats_sorted": [
      "math.NA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.NA",
    "submitted_at": "2017-04-05T23:47:57Z",
    "title_canon_sha256": "246aedabf943e91f497bd87057374049c3a8c4a815e148e96bfe267f305832ce"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1704.01669",
    "kind": "arxiv",
    "version": 1
  }
}