Pith Number

pith:KFYAWAM5

pith:2021:KFYAWAM5GPHP2LLJXLPLLI2ZS2

not attested not anchored not stored refs pending

Multigrid Solver With Super-Resolved Interpolation

Francisco Holguin, Gavin Portwood, GS Sidharth

arxiv:2105.01739 v1 · 2021-04-28 · 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{KFYAWAM5GPHP2LLJXLPLLI2ZS2}

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	2026-07-05T02:37:47.639897Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

51700b019d33cefd2d69badeb5a35996bbbb5aa2de01df5aa29458ae2b87ef52

Aliases

arxiv: 2105.01739 · arxiv_version: 2105.01739v1 · doi: 10.48550/arxiv.2105.01739 · pith_short_12: KFYAWAM5GPHP · pith_short_16: KFYAWAM5GPHP2LLJ · pith_short_8: KFYAWAM5

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/KFYAWAM5GPHP2LLJXLPLLI2ZS2 \
  | 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: 51700b019d33cefd2d69badeb5a35996bbbb5aa2de01df5aa29458ae2b87ef52

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5cafeba853af6826206816701bd1d5f8f78e4ead50cb11573a90fe30689ebcd8",
    "cross_cats_sorted": [
      "cs.NA"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2021-04-28T21:30:03Z",
    "title_canon_sha256": "09f9b69a2a5d4c9318f29c7480f06e78a71fdf8cca76322d3360c2a8a5990397"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2105.01739",
    "kind": "arxiv",
    "version": 1
  }
}