Pith Number

pith:LRO4RCH2

pith:2021:LRO4RCH2WKS5T55XOWUNPCWAIY

not attested not anchored not stored refs pending

Multi-channel Opus compression for far-field automatic speech recognition with a fixed bitrate budget

Andreas Schwarz, Jahn Heymann, Jean-Marc Valin, Lukas Drude

arxiv:2106.07994 v1 · 2021-06-15 · eess.AS · 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{LRO4RCH2WKS5T55XOWUNPCWAIY}

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	2026-07-05T02:49:36.358804Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

5c5dc888fab2a5d9f7b775a8d78ac04633582b031e9e501633a1946e7457cad4

Aliases

arxiv: 2106.07994 · arxiv_version: 2106.07994v1 · doi: 10.48550/arxiv.2106.07994 · pith_short_12: LRO4RCH2WKS5 · pith_short_16: LRO4RCH2WKS5T55X · pith_short_8: LRO4RCH2

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/LRO4RCH2WKS5T55XOWUNPCWAIY \
  | 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: 5c5dc888fab2a5d9f7b775a8d78ac04633582b031e9e501633a1946e7457cad4

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9385d8e429ddce638742442bbd6ddd0dd0c031d726a3ed131b486deffd9eed7f",
    "cross_cats_sorted": [
      "cs.SD"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "eess.AS",
    "submitted_at": "2021-06-15T09:16:20Z",
    "title_canon_sha256": "2e258953107c87a41763f2171a6ad0ae50ddd6bb48239b318a557e4d6f556905"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2106.07994",
    "kind": "arxiv",
    "version": 1
  }
}