Pith Number

pith:LQI5VD2L

pith:2018:LQI5VD2LUAHJ6KKMEEJBOSCKYZ

not attested not anchored not stored refs pending

A new perspective on hierarchical spline spaces for adaptivity

Marcelo Actis, M. Sebast\'an Pauletti, Pedro Morin

arxiv:1808.02053 v1 · 2018-08-06 · 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{LQI5VD2LUAHJ6KKMEEJBOSCKYZ}

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	2026-05-18T00:08:47.783964Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

5c11da8f4ba00e9f294c211217484ac6600a958300f5d1fb4577d1057688fdaf

Aliases

arxiv: 1808.02053 · arxiv_version: 1808.02053v1 · doi: 10.48550/arxiv.1808.02053 · pith_short_12: LQI5VD2LUAHJ · pith_short_16: LQI5VD2LUAHJ6KKM · pith_short_8: LQI5VD2L

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/LQI5VD2LUAHJ6KKMEEJBOSCKYZ \
  | 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: 5c11da8f4ba00e9f294c211217484ac6600a958300f5d1fb4577d1057688fdaf

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7bdb2f4bf95b8efb20abe40a5a251b726a5f2ca02d63003c384c4562d9a7de15",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2018-08-06T18:12:13Z",
    "title_canon_sha256": "8ed3a73217d66875fcfbfbb409e0038df73845caaa0afff20e8657d234a94ceb"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1808.02053",
    "kind": "arxiv",
    "version": 1
  }
}