Pith Number

pith:FPWYBH3T

pith:2013:FPWYBH3TE6SDSOFGPGDQICEO3U

not attested not anchored not stored refs pending

Multi-Label Classifier Chains for Bird Sound

Forrest Briggs, Jed Irvine, Xiaoli Z. Fern

arxiv:1304.5862 v2 · 2013-04-22 · cs.LG · cs.SD · stat.ML

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{FPWYBH3TE6SDSOFGPGDQICEO3U}

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	2026-05-18T03:22:18.322077Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2bed809f7327a43938a6798704088edd10412da51e32abda315db27500ac22cc

Aliases

arxiv: 1304.5862 · arxiv_version: 1304.5862v2 · doi: 10.48550/arxiv.1304.5862 · pith_short_12: FPWYBH3TE6SD · pith_short_16: FPWYBH3TE6SDSOFG · pith_short_8: FPWYBH3T

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/FPWYBH3TE6SDSOFGPGDQICEO3U \
  | 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: 2bed809f7327a43938a6798704088edd10412da51e32abda315db27500ac22cc

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b71b870ca3264ec710fe6739164e4926678a46a20a3e49306f97b9d0fec7e699",
    "cross_cats_sorted": [
      "cs.SD",
      "stat.ML"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.LG",
    "submitted_at": "2013-04-22T07:44:05Z",
    "title_canon_sha256": "fbaa5351f300b84f74f0a8594326254456d119c913adac386c80fd05daa8a99b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1304.5862",
    "kind": "arxiv",
    "version": 2
  }
}