Pith Number

pith:OXOTL5VM

pith:2013:OXOTL5VM3IXHHMMY4TZO7ZTJ4W

not attested not anchored not stored refs pending

An Improved Variable Step-size Affine Projection Sign Algorithm for Echo Cancellation

Jianming Liu, Steven L. Grant

arxiv:1311.5242 v1 · 2013-11-16 · cs.OH

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{OXOTL5VM3IXHHMMY4TZO7ZTJ4W}

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	2026-05-18T03:06:33.899640Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

75dd35f6acda2e73b198e4f2efe669e5a09ab61e2a17d39f52bda9731b0905cf

Aliases

arxiv: 1311.5242 · arxiv_version: 1311.5242v1 · doi: 10.48550/arxiv.1311.5242 · pith_short_12: OXOTL5VM3IXH · pith_short_16: OXOTL5VM3IXHHMMY · pith_short_8: OXOTL5VM

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/OXOTL5VM3IXHHMMY4TZO7ZTJ4W \
  | 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: 75dd35f6acda2e73b198e4f2efe669e5a09ab61e2a17d39f52bda9731b0905cf

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ca9016c3c2607f4a5fd313347d0d29ca78dd54856d9b6462d68b24135d6df328",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.OH",
    "submitted_at": "2013-11-16T04:31:48Z",
    "title_canon_sha256": "188d0041227c2ec94ac30e76f2c3eba89c4cd430f1def7a38b61332a5daac572"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1311.5242",
    "kind": "arxiv",
    "version": 1
  }
}