Pith Number

pith:NWSEFBSF

pith:2013:NWSEFBSFYBKPZT2RRC44N23N7K

not attested not anchored not stored refs pending

Monotone Smoothing Splines Using General Linear Systems

Clyde F. Martin, Masaaki Nagahara

arxiv:1308.1509 v1 · 2013-08-07 · cs.SY · cs.IT · math.IT · math.OC · stat.AP

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{NWSEFBSFYBKPZT2RRC44N23N7K}

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	2026-05-18T03:16:30.977620Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6da4428645c054fccf5188b9c6eb6dfa8c3d90a7d0e9037e038379c35b4c053e

Aliases

arxiv: 1308.1509 · arxiv_version: 1308.1509v1 · doi: 10.48550/arxiv.1308.1509 · pith_short_12: NWSEFBSFYBKP · pith_short_16: NWSEFBSFYBKPZT2R · pith_short_8: NWSEFBSF

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/NWSEFBSFYBKPZT2RRC44N23N7K \
  | 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: 6da4428645c054fccf5188b9c6eb6dfa8c3d90a7d0e9037e038379c35b4c053e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "bac1dc0759f2fbb420230eae6e202b903f0222267162051f8f7cfc0d5be0f2fc",
    "cross_cats_sorted": [
      "cs.IT",
      "math.IT",
      "math.OC",
      "stat.AP"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.SY",
    "submitted_at": "2013-08-07T09:13:21Z",
    "title_canon_sha256": "910a8612fb5ebff4938575946265a9777e923f2b0d50801b574a4275cfab9c62"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1308.1509",
    "kind": "arxiv",
    "version": 1
  }
}