Pith Number

pith:F4FTBIDF

pith:2014:F4FTBIDF2KB7GCVDXDGCKGPLEV

not attested not anchored not stored refs pending

Automatic Fado Music Classification

David Martins de Matos, Isabel Trancoso, Pedro Gir\~ao Antunes, Ricardo Ribeiro

arxiv:1406.4447 v1 · 2014-06-17 · cs.SD · cs.AI

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{F4FTBIDF2KB7GCVDXDGCKGPLEV}

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	2026-05-18T02:49:32.041513Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2f0b30a065d283f30aa3b8cc2519eb2542130c4c2e3183f02b32cd4bba0219b1

Aliases

arxiv: 1406.4447 · arxiv_version: 1406.4447v1 · doi: 10.48550/arxiv.1406.4447 · pith_short_12: F4FTBIDF2KB7 · pith_short_16: F4FTBIDF2KB7GCVD · pith_short_8: F4FTBIDF

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/F4FTBIDF2KB7GCVDXDGCKGPLEV \
  | 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: 2f0b30a065d283f30aa3b8cc2519eb2542130c4c2e3183f02b32cd4bba0219b1

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "cb04573c4e2524cbf01dcd31aa834e346711f222c86c6862acd437608e958fa7",
    "cross_cats_sorted": [
      "cs.AI"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.SD",
    "submitted_at": "2014-06-17T17:44:45Z",
    "title_canon_sha256": "309001fbf4f34b83195b50dee98c23bef3c597af8fce73842db06ba6d02fb54c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1406.4447",
    "kind": "arxiv",
    "version": 1
  }
}