Pith Number

pith:LKXH7WHK

pith:2025:LKXH7WHKLG7IYPWFKL3CPEYS25

not attested not anchored not stored refs pending

Deflation-based certified greedy algorithm and adaptivity for bifurcating nonlinear PDEs

Federico Pichi, Maria Strazzullo

arxiv:2501.12361 v3 · 2025-01-21 · 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{LKXH7WHKLG7IYPWFKL3CPEYS25}

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	2026-07-05T11:02:17.353162Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

5aae7fd8ea59be8c3ec552f6279312d761fa283d4e9fd05c1e0151f8de072ba8

Aliases

arxiv: 2501.12361 · arxiv_version: 2501.12361v3 · doi: 10.48550/arxiv.2501.12361 · pith_short_12: LKXH7WHKLG7I · pith_short_16: LKXH7WHKLG7IYPWF · pith_short_8: LKXH7WHK

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/LKXH7WHKLG7IYPWFKL3CPEYS25 \
  | 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: 5aae7fd8ea59be8c3ec552f6279312d761fa283d4e9fd05c1e0151f8de072ba8

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f1ecd9343495566ce253ac1e8cc990083fc4a268f3bad175c50b8515f3ed1e16",
    "cross_cats_sorted": [
      "cs.NA"
    ],
    "license": "http://creativecommons.org/licenses/by-nc-nd/4.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2025-01-21T18:41:31Z",
    "title_canon_sha256": "838b1a661885444917f2b793ab3cc9be2d00d8a2f901d52530cf411c83505027"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2501.12361",
    "kind": "arxiv",
    "version": 3
  }
}