Pith Number

pith:6NHIBBRJ

pith:2016:6NHIBBRJIX7ENVYPTOMWKR4AR2

not attested not anchored not stored refs pending

Learning Fast Sparsifying Transforms

Cristian Rusu, John Thompson

arxiv:1611.08230 v2 · 2016-11-24 · cs.LG

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{6NHIBBRJIX7ENVYPTOMWKR4AR2}

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	2026-05-18T00:39:01.079555Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f34e80862945fe46d70f9b996547808e8d3a1db64702f9f66ba94604cb07339c

Aliases

arxiv: 1611.08230 · arxiv_version: 1611.08230v2 · doi: 10.48550/arxiv.1611.08230 · pith_short_12: 6NHIBBRJIX7E · pith_short_16: 6NHIBBRJIX7ENVYP · pith_short_8: 6NHIBBRJ

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/6NHIBBRJIX7ENVYPTOMWKR4AR2 \
  | 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: f34e80862945fe46d70f9b996547808e8d3a1db64702f9f66ba94604cb07339c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c1f4232d85e763f5e4a87ce6536e4cb0090534eda1b458e66ef99100a0474230",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.LG",
    "submitted_at": "2016-11-24T15:57:09Z",
    "title_canon_sha256": "36f41fefd7f142bf6115a74401d848f95951d5477139b2589efec76260c05705"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1611.08230",
    "kind": "arxiv",
    "version": 2
  }
}