Pith Number

pith:ALR6F7WT

pith:2015:ALR6F7WTHANJXJB2WZXR72C66G

not attested not anchored not stored refs pending

Unstructured spline spaces for isogeometric analysis based on spline manifolds

Giancarlo Sangalli, Rafael V\'azquez, Thomas Takacs

arxiv:1507.08477 v1 · 2015-07-30 · 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{ALR6F7WTHANJXJB2WZXR72C66G}

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	2026-05-18T01:36:06.335906Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

02e3e2fed3381a9ba43ab66f1fe85ef191d0274f51e9c9f32482f391c2173067

Aliases

arxiv: 1507.08477 · arxiv_version: 1507.08477v1 · doi: 10.48550/arxiv.1507.08477 · pith_short_12: ALR6F7WTHANJ · pith_short_16: ALR6F7WTHANJXJB2 · pith_short_8: ALR6F7WT

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/ALR6F7WTHANJXJB2WZXR72C66G \
  | 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: 02e3e2fed3381a9ba43ab66f1fe85ef191d0274f51e9c9f32482f391c2173067

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c996af74702bbf59a5e1b27612f7c26d0a944fd34f5e13831b16a3eb80b9d6f0",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2015-07-30T12:27:21Z",
    "title_canon_sha256": "aaf14d56a618fdbfdc1d17f953db1224380300f56d669b5788444f5e8dcb0b2e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1507.08477",
    "kind": "arxiv",
    "version": 1
  }
}