Pith Number

pith:QKLCNRCH

pith:2019:QKLCNRCHUTAQOSFRHMFT2WVPUV

not attested not anchored not stored refs pending

Support and Approximation Properties of Hermite Splines

Julien Fageot, Michael Unser, Shayan Aziznejad, Virginie Uhlmann

arxiv:1902.02565 v2 · 2019-02-07 · 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{QKLCNRCHUTAQOSFRHMFT2WVPUV}

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	2026-05-17T23:54:31.297944Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

829626c447a4c10748b13b0b3d5aafa558f4186af58cb9163e3950335ad5ee04

Aliases

arxiv: 1902.02565 · arxiv_version: 1902.02565v2 · doi: 10.48550/arxiv.1902.02565 · pith_short_12: QKLCNRCHUTAQ · pith_short_16: QKLCNRCHUTAQOSFR · pith_short_8: QKLCNRCH

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/QKLCNRCHUTAQOSFRHMFT2WVPUV \
  | 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: 829626c447a4c10748b13b0b3d5aafa558f4186af58cb9163e3950335ad5ee04

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "bb794aaae3f5ea80950e6c3e2f0e876401e2d1b884ec56dbeb127fbcc4026d7b",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2019-02-07T11:17:49Z",
    "title_canon_sha256": "6b37d1c0a8765665341035dc4d7e73c3f98bf0dcf3e3f1f2fa27618190a8d0bb"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1902.02565",
    "kind": "arxiv",
    "version": 2
  }
}