Pith Number

pith:NSI27GSR

pith:2016:NSI27GSRCQHYKNU3Z63PELPSSK

not attested not anchored not stored refs pending

Multigrid methods: grid transfer operators and subdivision schemes

Lucia Romani, Marco Donatelli, Maria Charina, Valentina Turati

arxiv:1608.03524 v1 · 2016-08-11 · 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{NSI27GSRCQHYKNU3Z63PELPSSK}

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	2026-05-18T01:09:28.774828Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6c91af9a51140f85369bcfb6f22df292a80284b6e4730d88df4219b02602d34f

Aliases

arxiv: 1608.03524 · arxiv_version: 1608.03524v1 · doi: 10.48550/arxiv.1608.03524 · pith_short_12: NSI27GSRCQHY · pith_short_16: NSI27GSRCQHYKNU3 · pith_short_8: NSI27GSR

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/NSI27GSRCQHYKNU3Z63PELPSSK \
  | 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: 6c91af9a51140f85369bcfb6f22df292a80284b6e4730d88df4219b02602d34f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6cbc6f03c7e2ca7f8665de9b6f9253fdf9bae445392433efe2371493d0860a63",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2016-08-11T16:32:12Z",
    "title_canon_sha256": "e32b0171091a994134d95217eed4253f024adc1a8a0f838ca7c2fef9ff45107c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1608.03524",
    "kind": "arxiv",
    "version": 1
  }
}