Pith Number

pith:K6BF6VEB

pith:2022:K6BF6VEBMC3DRAUW5V5BV6C7PB

not attested not anchored not stored refs pending

Compressed Smooth Sparse Decomposition

Jianjun Shi, Shancong Mou

arxiv:2201.07404 v2 · 2022-01-19 · eess.IV · 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{K6BF6VEBMC3DRAUW5V5BV6C7PB}

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	2026-07-05T04:40:35.026950Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

57825f548160b6388296ed7a1af85f787c6577dd6710fcbe18fbc6d6a45a33b3

Aliases

arxiv: 2201.07404 · arxiv_version: 2201.07404v2 · doi: 10.48550/arxiv.2201.07404 · pith_short_12: K6BF6VEBMC3D · pith_short_16: K6BF6VEBMC3DRAUW · pith_short_8: K6BF6VEB

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/K6BF6VEBMC3DRAUW5V5BV6C7PB \
  | 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: 57825f548160b6388296ed7a1af85f787c6577dd6710fcbe18fbc6d6a45a33b3

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0517a3ac74b1d196aa18fee302a7e610589d689b446feb2646b30124fdd758c7",
    "cross_cats_sorted": [
      "cs.LG"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "eess.IV",
    "submitted_at": "2022-01-19T03:50:41Z",
    "title_canon_sha256": "c48e0e2742d3063e1c9dc678bd7e09c43f14bafb522754b1bc6f4b15738ad43b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2201.07404",
    "kind": "arxiv",
    "version": 2
  }
}