Pith Number

pith:CBYUSU4N

pith:2019:CBYUSU4NIAHM7KC6OYB33NSELO

not attested not anchored not stored refs pending

A robust adaptive algebraic multigrid linear solver for structural mechanics

Andrea Franceschini, Carlo Janna, Gianluca Mazzucco, Nicol\`o Spiezia, Victor A. Paludetto Magri

arxiv:1902.01715 v1 · 2019-02-05 · 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{CBYUSU4NIAHM7KC6OYB33NSELO}

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	2026-05-17T23:42:24.063217Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

107149538d400ecfa85e7603bdb6445bbd79e542dc834f292c3c2ef7de52f977

Aliases

arxiv: 1902.01715 · arxiv_version: 1902.01715v1 · doi: 10.48550/arxiv.1902.01715 · pith_short_12: CBYUSU4NIAHM · pith_short_16: CBYUSU4NIAHM7KC6 · pith_short_8: CBYUSU4N

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/CBYUSU4NIAHM7KC6OYB33NSELO \
  | 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: 107149538d400ecfa85e7603bdb6445bbd79e542dc834f292c3c2ef7de52f977

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "13bd953f16589c3f255ed53d395fa84bc641c0b8f6e1296bc02aca590b42acf5",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2019-02-05T14:48:12Z",
    "title_canon_sha256": "6587f450406fcbad0b070607ea95f3e9db040a8e9bfa5d6e9bd1498fbfc000f6"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1902.01715",
    "kind": "arxiv",
    "version": 1
  }
}