Pith Number

pith:OR3EM3GM

pith:2014:OR3EM3GMX5XFLMMIN7PP5DVOEW

not attested not anchored not stored refs pending

Maximizing the Signal-to-Alias Ratio in Non-Uniform Filter Banks for Acoustic Echo Cancellation

D. J. Shpak, R. C. Nongpiur

arxiv:1402.4160 v1 · 2014-02-14 · 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{OR3EM3GMX5XFLMMIN7PP5DVOEW}

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	2026-05-18T02:58:44.681213Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7476466cccbf6e55b1886fdefe8eae25a73583060937ae9967baf0734ffdd418

Aliases

arxiv: 1402.4160 · arxiv_version: 1402.4160v1 · doi: 10.48550/arxiv.1402.4160 · pith_short_12: OR3EM3GMX5XF · pith_short_16: OR3EM3GMX5XFLMMI · pith_short_8: OR3EM3GM

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/OR3EM3GMX5XFLMMIN7PP5DVOEW \
  | 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: 7476466cccbf6e55b1886fdefe8eae25a73583060937ae9967baf0734ffdd418

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "943732098d8291c263e7fb5f6b2f930ae50f85557a668c363a7458c257bd8222",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.SD",
    "submitted_at": "2014-02-14T03:11:53Z",
    "title_canon_sha256": "5516dc981058cc5dceabba008a0efe62790c99ce5d603c38b8563eabd627e227"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1402.4160",
    "kind": "arxiv",
    "version": 1
  }
}