Pith Number

pith:OBUBCVS3

pith:2020:OBUBCVS3H7PFNGCOIONIUPAR7I

not attested not anchored not stored refs pending

A Perceptually-Motivated Approach for Low-Complexity, Real-Time Enhancement of Fullband Speech

Arvindh Krishnaswamy, Jean-Marc Valin, Karim Helwani, Neerad Phansalkar, Ritwik Giri, Umut Isik

arxiv:2008.04259 v2 · 2020-08-10 · eess.AS

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{OBUBCVS3H7PFNGCOIONIUPAR7I}

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	2026-07-05T01:30:52.865874Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

706811565b3fde56984e439a8a3c11fa3d7baefb88f257edf15c417865c82b75

Aliases

arxiv: 2008.04259 · arxiv_version: 2008.04259v2 · doi: 10.48550/arxiv.2008.04259 · pith_short_12: OBUBCVS3H7PF · pith_short_16: OBUBCVS3H7PFNGCO · pith_short_8: OBUBCVS3

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/OBUBCVS3H7PFNGCOIONIUPAR7I \
  | 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: 706811565b3fde56984e439a8a3c11fa3d7baefb88f257edf15c417865c82b75

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6c60d75d1482c4952e7de5ae205abb2e2e9ec7251736249e2c68e5d03376720a",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "eess.AS",
    "submitted_at": "2020-08-10T17:03:16Z",
    "title_canon_sha256": "5df22afc4e870411c83d17c946527d7e5e053396e5db57f6689435f5a5961a9e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2008.04259",
    "kind": "arxiv",
    "version": 2
  }
}