Pith Number

pith:EAVC5S2E

pith:2012:EAVC5S2ER2QNAV6JUVZ2CAXDLV

not attested not anchored not stored refs pending

Speech Signal Filters based on Soft Computing Techniques: A Comparison

G. Ramakrishna, Sachin Lakra, T.V. Prasad

arxiv:1209.4445 v1 · 2012-09-20 · cs.AI

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{EAVC5S2ER2QNAV6JUVZ2CAXDLV}

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	2026-05-18T03:45:11.703954Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

202a2ecb448ea0d057c9a573a102e35d709fd561dc398bdba8ce3593df9d9ab7

Aliases

arxiv: 1209.4445 · arxiv_version: 1209.4445v1 · doi: 10.48550/arxiv.1209.4445 · pith_short_12: EAVC5S2ER2QN · pith_short_16: EAVC5S2ER2QNAV6J · pith_short_8: EAVC5S2E

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/EAVC5S2ER2QNAV6JUVZ2CAXDLV \
  | 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: 202a2ecb448ea0d057c9a573a102e35d709fd561dc398bdba8ce3593df9d9ab7

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3ba9962866224799834c0c64ad7a87a8c08c082ecebf4ce5bdba40198ff155a2",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.AI",
    "submitted_at": "2012-09-20T08:10:07Z",
    "title_canon_sha256": "cee91ace85bd91dc3fbbb8b26195278e39bb8a7a98e102d23c9146b0cf103863"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1209.4445",
    "kind": "arxiv",
    "version": 1
  }
}