Pith Number

pith:NRU2IK7R

pith:2020:NRU2IK7RTW4YO5RS5LL3N7GC5Z

not attested not anchored not stored refs pending

Texture-based Presentation Attack Detection for Automatic Speaker Verification

Christoph Busch, Jose Patino, Lazaro J. Gonzalez-Soler, Marta Gomez-Barrero, Massimiliano Todisco, Nicholas Evans

arxiv:2010.04038 v1 · 2020-10-08 · cs.SD · cs.CV · 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{NRU2IK7RTW4YO5RS5LL3N7GC5Z}

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	2026-07-05T01:41:26.361289Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6c69a42bf19db9877632ead7b6fcc2ee439d82cce921e5c1a020914724de0221

Aliases

arxiv: 2010.04038 · arxiv_version: 2010.04038v1 · doi: 10.48550/arxiv.2010.04038 · pith_short_12: NRU2IK7RTW4Y · pith_short_16: NRU2IK7RTW4YO5RS · pith_short_8: NRU2IK7R

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/NRU2IK7RTW4YO5RS5LL3N7GC5Z \
  | 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: 6c69a42bf19db9877632ead7b6fcc2ee439d82cce921e5c1a020914724de0221

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4a776d20a84d2266183f8f3393e834b270382d2d41f4ec33d1dcfa9a3a026286",
    "cross_cats_sorted": [
      "cs.CV",
      "cs.LG",
      "eess.AS"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.SD",
    "submitted_at": "2020-10-08T15:03:29Z",
    "title_canon_sha256": "b0d721727568b489176f789324aa37a27f34ed1e10ab9666279ac2f03dd40764"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2010.04038",
    "kind": "arxiv",
    "version": 1
  }
}