Pith Number

pith:7ROSGWFX

pith:2017:7ROSGWFX4ZFT7HNHWJBR5HXZDH

not attested not anchored not stored refs pending

Provably Accurate Double-Sparse Coding

Chinmay Hegde, Raymond K. W. Wong, Thanh V. Nguyen

arxiv:1711.03638 v2 · 2017-11-09 · stat.ML · 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{7ROSGWFX4ZFT7HNHWJBR5HXZDH}

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	2026-05-18T00:28:07.877831Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

fc5d2358b7e64b3f9da7b2431e9ef919f131ee18532a5fa930130bf08ff682e4

Aliases

arxiv: 1711.03638 · arxiv_version: 1711.03638v2 · doi: 10.48550/arxiv.1711.03638 · pith_short_12: 7ROSGWFX4ZFT · pith_short_16: 7ROSGWFX4ZFT7HNH · pith_short_8: 7ROSGWFX

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/7ROSGWFX4ZFT7HNHWJBR5HXZDH \
  | 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: fc5d2358b7e64b3f9da7b2431e9ef919f131ee18532a5fa930130bf08ff682e4

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "01694b446305ae0cdc1fdf671504705cae81bd1d3d46276e9bdb7e15910df7a3",
    "cross_cats_sorted": [
      "cs.LG"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "stat.ML",
    "submitted_at": "2017-11-09T23:06:15Z",
    "title_canon_sha256": "87b279661b83f8c5459182d98a9147327b9ec6c0d50a0cc079465b5bf92f0dd9"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1711.03638",
    "kind": "arxiv",
    "version": 2
  }
}