Pith Number

pith:5MM6PWQO

pith:2016:5MM6PWQOQQPDLBYSHKA4ZKP2KY

not attested not anchored not stored refs pending

Automatic recognition of element classes and boundaries in the birdsong with variable sequences

Kazuo Okanoya, Takuya Koumura

arxiv:1601.06248 v1 · 2016-01-23 · q-bio.NC · cs.LG · 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{5MM6PWQOQQPDLBYSHKA4ZKP2KY}

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	2026-05-18T01:03:50.534597Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

eb19e7da0e841e3587123a81cca9fa561fa50142ae736dec6ebe13d4bad0a77c

Aliases

arxiv: 1601.06248 · arxiv_version: 1601.06248v1 · doi: 10.48550/arxiv.1601.06248 · pith_short_12: 5MM6PWQOQQPD · pith_short_16: 5MM6PWQOQQPDLBYS · pith_short_8: 5MM6PWQO

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/5MM6PWQOQQPDLBYSHKA4ZKP2KY \
  | 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: eb19e7da0e841e3587123a81cca9fa561fa50142ae736dec6ebe13d4bad0a77c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "90a4093c7c5e9de87147a23f6e8f4f597794682a5225e7d67382d4e1f93dbaa6",
    "cross_cats_sorted": [
      "cs.LG",
      "cs.SD"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "q-bio.NC",
    "submitted_at": "2016-01-23T07:57:56Z",
    "title_canon_sha256": "bf21d32516b022c92731717ea92e50bba7cf7e5a44e2570ee6ed02b9c1b5e9da"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1601.06248",
    "kind": "arxiv",
    "version": 1
  }
}