Pith Number

pith:W5NEKPJR

pith:2014:W5NEKPJRYHPN52JOVTY5XRZL6M

not attested not anchored not stored refs pending

Sparsity-Aware Filtered-X Affine Projection Algorithms for Active Noise Control

A.Gully, R. C. de Lamare

arxiv:1405.6945 v1 · 2014-05-25 · cs.SD

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{W5NEKPJRYHPN52JOVTY5XRZL6M}

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	2026-05-18T02:51:00.060185Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b75a453d31c1dedee92eacf1dbc72bf3010339b6b5918688a395a1e81ca3c3ed

Aliases

arxiv: 1405.6945 · arxiv_version: 1405.6945v1 · doi: 10.48550/arxiv.1405.6945 · pith_short_12: W5NEKPJRYHPN · pith_short_16: W5NEKPJRYHPN52JO · pith_short_8: W5NEKPJR

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/W5NEKPJRYHPN52JOVTY5XRZL6M \
  | 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: b75a453d31c1dedee92eacf1dbc72bf3010339b6b5918688a395a1e81ca3c3ed

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e3fd016e0527b11f5cd89aa8fa88c7f424e251a5e56f6ab0a8a7253922e8fb3f",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.SD",
    "submitted_at": "2014-05-25T22:22:04Z",
    "title_canon_sha256": "c7fbbd4b9a708f3fa9f51a34a4c3e2cabf71b70e57481a5001ff5257fc168c1e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1405.6945",
    "kind": "arxiv",
    "version": 1
  }
}