Pith Number

pith:3J2CLKX7

pith:2015:3J2CLKX7KVFNMF3DWDKLF3AVKY

not attested not anchored not stored refs pending

Improved Adaptive Sparse Channel Estimation Using Re-Weighted L1-norm Normalized Least Mean Fourth Algorithm

Chen Ye, Guan Gui, Li Xu, Nobuhiro Shimoi

arxiv:1501.07648 v1 · 2015-01-30 · cs.IT · cs.SY · math.IT

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{3J2CLKX7KVFNMF3DWDKLF3AVKY}

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	2026-05-18T02:28:20.022267Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

da7425aaff554ad61763b0d4b2ec1556332e02371bcc9b3cba027efe4dd4f7ef

Aliases

arxiv: 1501.07648 · arxiv_version: 1501.07648v1 · doi: 10.48550/arxiv.1501.07648 · pith_short_12: 3J2CLKX7KVFN · pith_short_16: 3J2CLKX7KVFNMF3D · pith_short_8: 3J2CLKX7

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/3J2CLKX7KVFNMF3DWDKLF3AVKY \
  | 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: da7425aaff554ad61763b0d4b2ec1556332e02371bcc9b3cba027efe4dd4f7ef

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3b121929e44810efe03b80c20004a5cad7f66d5659657d52261d9f6ae71de079",
    "cross_cats_sorted": [
      "cs.SY",
      "math.IT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IT",
    "submitted_at": "2015-01-30T02:12:05Z",
    "title_canon_sha256": "ff717bb664a356fe1108ec5c90c0291a0c095a722f82523516f651c140a31451"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1501.07648",
    "kind": "arxiv",
    "version": 1
  }
}