Pith Number

pith:NTIYOVNG

pith:2015:NTIYOVNGDF5O2GZLU4YBONRZHS

not attested not anchored not stored refs pending

Gradient Compared Lp-LMS Algorithms for Sparse System Identification

Huazhong Shu, Jiasong Wu, Limin Luo, Rui Zeng, Yong Feng

arxiv:1503.01185 v3 · 2015-03-04 · cs.SY

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{NTIYOVNGDF5O2GZLU4YBONRZHS}

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	2026-05-18T02:25:18.058114Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6cd18755a6197aed1b2ba7301736393c81638e42cd3473c95e53fa0f49aea8bd

Aliases

arxiv: 1503.01185 · arxiv_version: 1503.01185v3 · doi: 10.48550/arxiv.1503.01185 · pith_short_12: NTIYOVNGDF5O · pith_short_16: NTIYOVNGDF5O2GZL · pith_short_8: NTIYOVNG

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/NTIYOVNGDF5O2GZLU4YBONRZHS \
  | 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: 6cd18755a6197aed1b2ba7301736393c81638e42cd3473c95e53fa0f49aea8bd

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "775daf1914184ce65b8a05c5572277ac3af6c884b3b5c59008c55c8989d76a96",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.SY",
    "submitted_at": "2015-03-04T01:17:27Z",
    "title_canon_sha256": "f471d19505261f6bea226150d606040b7c890bde6ac2a7c8ca7ce7f49ef1cb21"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1503.01185",
    "kind": "arxiv",
    "version": 3
  }
}