Pith Number

pith:CXGSFRR4

pith:2018:CXGSFRR457LQ7NY7C2K745BEOM

not attested not anchored not stored refs pending

Deeply-Sparse Signal rePresentations ($\text{D}\text{S}^2\text{P}$)

Demba Ba

arxiv:1807.01958 v5 · 2018-07-05 · eess.SP · 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{CXGSFRR457LQ7NY7C2K745BEOM}

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.

Cited by

1 paper in Pith

Expander Sparse Autoencoders: Parameter-Efficient Dictionaries for Mechanistic Interpretability

Receipt and verification

First computed	2026-07-05T00:57:48.394987Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

15cd22c63cefd70fb71f1695fe7424730592ff510eb8c5a373952574893bc6c2

Aliases

arxiv: 1807.01958 · arxiv_version: 1807.01958v5 · doi: 10.48550/arxiv.1807.01958 · pith_short_12: CXGSFRR457LQ · pith_short_16: CXGSFRR457LQ7NY7 · pith_short_8: CXGSFRR4

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/CXGSFRR457LQ7NY7C2K745BEOM \
  | 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: 15cd22c63cefd70fb71f1695fe7424730592ff510eb8c5a373952574893bc6c2

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7cda1bb8e02001195f1b49225f8b1b23285d11a73be834af66ce12d985e06ea7",
    "cross_cats_sorted": [
      "cs.LG"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "eess.SP",
    "submitted_at": "2018-07-05T12:20:02Z",
    "title_canon_sha256": "0e582713c0b1ee08f77cb17e50f47531e5571dc748bc6fe1795800b467c62b27"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1807.01958",
    "kind": "arxiv",
    "version": 5
  }
}