Pith Number

pith:XD4FYHZO

pith:2017:XD4FYHZOU6GTC4NLAJB7Z2UYZC

not attested not anchored not stored refs pending

A hybrid Alternating Least Squares -- TT Cross algorithm for parametric PDEs

Robert Scheichl, Sergey Dolgov

arxiv:1707.04562 v2 · 2017-07-14 · 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{XD4FYHZOU6GTC4NLAJB7Z2UYZC}

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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.

Cited by

1 paper in Pith

Neural Operator: Graph Kernel Network for Partial Differential Equations

Receipt and verification

First computed	2026-05-18T00:11:28.250983Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b8f85c1f2ea78d3171ab0243fcea98c8ac4289f3556502d669b2cd2df6022ae8

Aliases

arxiv: 1707.04562 · arxiv_version: 1707.04562v2 · doi: 10.48550/arxiv.1707.04562 · pith_short_12: XD4FYHZOU6GT · pith_short_16: XD4FYHZOU6GTC4NL · pith_short_8: XD4FYHZO

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/XD4FYHZOU6GTC4NLAJB7Z2UYZC \
  | 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: b8f85c1f2ea78d3171ab0243fcea98c8ac4289f3556502d669b2cd2df6022ae8

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5c944cd5600acd9df98cffcdd9eaa99cec1f23e86e55b4d35619bcf3b1541bb1",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2017-07-14T16:53:59Z",
    "title_canon_sha256": "7a6380ad038f390d669af6ef913eae2284ecc1f9a1b581e4e8fb872c8b3ad64c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1707.04562",
    "kind": "arxiv",
    "version": 2
  }
}