Pith Number

pith:VFVDZ2GZ

pith:2019:VFVDZ2GZHPCAEZEWTUPOYUHXRX

not attested not anchored not stored refs pending

Ultra-broadband local active noise control with remote acoustic sensing

Benjamin Halkon, Tong Xiao, Xiaojun Qiu

arxiv:1909.03377 v3 · 2019-09-08 · eess.SY · cs.SD · cs.SY · eess.AS · eess.SP

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{VFVDZ2GZHPCAEZEWTUPOYUHXRX}

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	2026-07-05T01:55:06.660412Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a96a3ce8d93bc40264969d1eec50f78ddc7ab028b37001f163a4e3271081a22d

Aliases

arxiv: 1909.03377 · arxiv_version: 1909.03377v3 · doi: 10.48550/arxiv.1909.03377 · pith_short_12: VFVDZ2GZHPCA · pith_short_16: VFVDZ2GZHPCAEZEW · pith_short_8: VFVDZ2GZ

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/VFVDZ2GZHPCAEZEWTUPOYUHXRX \
  | 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: a96a3ce8d93bc40264969d1eec50f78ddc7ab028b37001f163a4e3271081a22d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "91c185b42b18c9e5302e68ea9c47c86d04c5e5a1eb7df1aef6ef6ef2cb9e1ec8",
    "cross_cats_sorted": [
      "cs.SD",
      "cs.SY",
      "eess.AS",
      "eess.SP"
    ],
    "license": "http://creativecommons.org/licenses/by-nc-sa/4.0/",
    "primary_cat": "eess.SY",
    "submitted_at": "2019-09-08T03:00:35Z",
    "title_canon_sha256": "3aad3a58abeed8d49d2c8e5db371cf9227e55fe57044df9bad7e3c97ff82d0e6"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1909.03377",
    "kind": "arxiv",
    "version": 3
  }
}