Pith Number

pith:BJJCFG2U

pith:2019:BJJCFG2UEDRXAELJVGZ6C3JBLT

not attested not anchored not stored refs pending

Monotone smoothing splines with bounds

Sara Maad Sasane

arxiv:1909.06765 v2 · 2019-09-15 · math.OC

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{BJJCFG2UEDRXAELJVGZ6C3JBLT}

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	2026-07-05T00:34:44.167574Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0a52229b5420e3701169a9b3e16d215cfa1a139f8cdcb7f4949cb819a0f328af

Aliases

arxiv: 1909.06765 · arxiv_version: 1909.06765v2 · doi: 10.48550/arxiv.1909.06765 · pith_short_12: BJJCFG2UEDRX · pith_short_16: BJJCFG2UEDRXAELJ · pith_short_8: BJJCFG2U

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/BJJCFG2UEDRXAELJVGZ6C3JBLT \
  | 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: 0a52229b5420e3701169a9b3e16d215cfa1a139f8cdcb7f4949cb819a0f328af

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2b6a9674e3c54f172f1780384f8cddeab49c0f75a5ba3f3d23111ab58a94f0b2",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.OC",
    "submitted_at": "2019-09-15T09:05:24Z",
    "title_canon_sha256": "768a186fb4577994524d545e9496463a41eb7fa91ef98dd632442c6862f9c8ee"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1909.06765",
    "kind": "arxiv",
    "version": 2
  }
}