Pith Number

pith:L4EYQRBI

pith:2019:L4EYQRBIHYWLVPA2DUNES25QGZ

not attested not anchored not stored refs pending

Multitask Learning for Polyphonic Piano Transcription, a Case Study

Gerhard Widmer, Rainer Kelz, Sebastian B\"ock

arxiv:1902.04390 v1 · 2019-02-12 · cs.SD · 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{L4EYQRBIHYWLVPA2DUNES25QGZ}

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	2026-05-17T23:54:12.401398Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

5f098844283e2cbabc1a1d1a496bb03661ea20d54febad33a5f67d0d4adfb3d8

Aliases

arxiv: 1902.04390 · arxiv_version: 1902.04390v1 · doi: 10.48550/arxiv.1902.04390 · pith_short_12: L4EYQRBIHYWL · pith_short_16: L4EYQRBIHYWLVPA2 · pith_short_8: L4EYQRBI

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/L4EYQRBIHYWLVPA2DUNES25QGZ \
  | 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: 5f098844283e2cbabc1a1d1a496bb03661ea20d54febad33a5f67d0d4adfb3d8

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "804a8385dda40b44985dff2178f7ef260d6076f5cb6586157836c73105f9bb29",
    "cross_cats_sorted": [
      "eess.AS"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.SD",
    "submitted_at": "2019-02-12T14:00:59Z",
    "title_canon_sha256": "045613106d90b2035747c93d390981ff2009d3b51f186f2e2bd56209b0f7654e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1902.04390",
    "kind": "arxiv",
    "version": 1
  }
}