Pith Number

pith:JOYVKB7O

pith:2021:JOYVKB7OLSUOG3ECBK26R73Q3W

not attested not anchored not stored refs pending

FastAudio: A Learnable Audio Front-End for Spoof Speech Detection

Douglas C. Schmidt, Jules White, Maria Powell, Quchen Fu, Zhongwei Teng

arxiv:2109.02774 v1 · 2021-09-06 · cs.SD · cs.CR · cs.LG · 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{JOYVKB7OLSUOG3ECBK26R73Q3W}

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	2026-07-05T03:12:19.035390Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

4bb15507ee5ca8e36c820ab5e8ff70dd9edbda24c03858be97d199331414592f

Aliases

arxiv: 2109.02774 · arxiv_version: 2109.02774v1 · doi: 10.48550/arxiv.2109.02774 · pith_short_12: JOYVKB7OLSUO · pith_short_16: JOYVKB7OLSUOG3EC · pith_short_8: JOYVKB7O

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/JOYVKB7OLSUOG3ECBK26R73Q3W \
  | 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: 4bb15507ee5ca8e36c820ab5e8ff70dd9edbda24c03858be97d199331414592f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "58ff4277b45c9df30cc53304c8c3a7e94ec95c48947657f098cc00a6de05f45d",
    "cross_cats_sorted": [
      "cs.CR",
      "cs.LG",
      "eess.AS"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.SD",
    "submitted_at": "2021-09-06T23:32:10Z",
    "title_canon_sha256": "7cb07294dd23f571f0703c1717845b49b41095a75e4836e56cc5cd7783d67dbc"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2109.02774",
    "kind": "arxiv",
    "version": 1
  }
}