Pith Number

pith:GFNWOP7C

pith:2019:GFNWOP7CVLILPYZLDTZJQNTIU6

not attested not anchored not stored refs pending

Efficient Derivative Computation for Cumulative B-Splines on Lie Groups

Christiane Sommer, Daniel Cremers, David Schubert, Nikolaus Demmel, Vladyslav Usenko

arxiv:1911.08860 v2 · 2019-11-20 · cs.CV · cs.NA · cs.RO · 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{GFNWOP7CVLILPYZLDTZJQNTIU6}

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	2026-07-05T01:25:52.255939Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

315b673fe2aad0b7e32b1cf2983668a78177c4f3f38f944e678454ba883a5a87

Aliases

arxiv: 1911.08860 · arxiv_version: 1911.08860v2 · doi: 10.48550/arxiv.1911.08860 · pith_short_12: GFNWOP7CVLIL · pith_short_16: GFNWOP7CVLILPYZL · pith_short_8: GFNWOP7C

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/GFNWOP7CVLILPYZLDTZJQNTIU6 \
  | 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: 315b673fe2aad0b7e32b1cf2983668a78177c4f3f38f944e678454ba883a5a87

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "cd588c09b5e1a0759cfe096452ca9a243cfe229ee83b0f9be4f9e617498a032d",
    "cross_cats_sorted": [
      "cs.NA",
      "cs.RO",
      "math.NA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CV",
    "submitted_at": "2019-11-20T12:33:46Z",
    "title_canon_sha256": "464037985ae1d7f0e2bf9eadb8ef9fdfd68fed011e63cd776ce07135ca602d66"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1911.08860",
    "kind": "arxiv",
    "version": 2
  }
}