Pith Number

pith:LTOTBZVC

pith:2007:LTOTBZVCYA54325GQSXKVTFXZZ

not attested not anchored not stored refs pending

Cubic-matrix splines and second-order matrix models

A. Hervas, E. Defez, L. Soler, M.M. Tung

arxiv:0711.2913 v1 · 2007-11-19 · math.NA · cs.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{LTOTBZVCYA54325GQSXKVTFXZZ}

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	2026-06-03T22:06:03.216560Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

5cdd30e6a2c03bcdeba684aeaaccb7ce5685b8dee9cf0b4d061f2010b7fc8b0b

Aliases

arxiv: 0711.2913 · arxiv_version: 0711.2913v1 · doi: 10.48550/arxiv.0711.2913 · pith_short_12: LTOTBZVCYA54 · pith_short_16: LTOTBZVCYA54325G · pith_short_8: LTOTBZVC

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/LTOTBZVCYA54325GQSXKVTFXZZ \
  | 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: 5cdd30e6a2c03bcdeba684aeaaccb7ce5685b8dee9cf0b4d061f2010b7fc8b0b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "51576f8e89c6ffe1daae8666cdff69dbe37f47bb6d11037982e134c2b544b7e4",
    "cross_cats_sorted": [
      "cs.NA"
    ],
    "license": "",
    "primary_cat": "math.NA",
    "submitted_at": "2007-11-19T12:22:18Z",
    "title_canon_sha256": "aab982191c17965bd53d1628da755f47d8dcd6437c368c149667c62b1ebf6442"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0711.2913",
    "kind": "arxiv",
    "version": 1
  }
}