Pith Number

pith:Y6MZ7OT5

pith:2016:Y6MZ7OT5XLEPGPZ3L7CVVW4WR4

not attested not anchored not stored refs pending

A practical criterion for the existence of optimal piecewise Chebyshevian spline bases

Carolina Vittoria Beccari, Giulio Casciola

arxiv:1601.00380 v1 · 2016-01-04 · 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{Y6MZ7OT5XLEPGPZ3L7CVVW4WR4}

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	2026-05-18T01:23:27.612090Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c7999fba7dbac8f33f3b5fc55adb968f35a424c92758caa13a6e07a0cbc68cf0

Aliases

arxiv: 1601.00380 · arxiv_version: 1601.00380v1 · doi: 10.48550/arxiv.1601.00380 · pith_short_12: Y6MZ7OT5XLEP · pith_short_16: Y6MZ7OT5XLEPGPZ3 · pith_short_8: Y6MZ7OT5

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/Y6MZ7OT5XLEPGPZ3L7CVVW4WR4 \
  | 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: c7999fba7dbac8f33f3b5fc55adb968f35a424c92758caa13a6e07a0cbc68cf0

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "58428113c65b7259f897a380b9bc7001b76d19ae41578d9e4fc5c743ea8f0466",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2016-01-04T05:34:17Z",
    "title_canon_sha256": "164d70c7b4d71298450119d5f6db9147eccde48d45a9e44a5d2d1e846cbaa7f5"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1601.00380",
    "kind": "arxiv",
    "version": 1
  }
}