Pith Number

pith:6GTVQABV

pith:2022:6GTVQABVS5THJYRHBZ2HSU6IXX

not attested not anchored not stored refs pending

Semi-Supervised Convolutive NMF for Automatic Piano Transcription

Axel Marmoret, Haoran Wu, J\'er\'emy E. Cohen

arxiv:2202.04989 v2 · 2022-02-10 · cs.SD · 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{6GTVQABVS5THJYRHBZ2HSU6IXX}

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	2026-07-05T04:14:41.791112Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f1a7580035976674e2270e747953c8bdc3a707b043ace3fb58d1d6a1e0471d8c

Aliases

arxiv: 2202.04989 · arxiv_version: 2202.04989v2 · doi: 10.48550/arxiv.2202.04989 · pith_short_12: 6GTVQABVS5TH · pith_short_16: 6GTVQABVS5THJYRH · pith_short_8: 6GTVQABV

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/6GTVQABVS5THJYRHBZ2HSU6IXX \
  | 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: f1a7580035976674e2270e747953c8bdc3a707b043ace3fb58d1d6a1e0471d8c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "27cf65c955dac43edcdc0e6b7344b48efd1684cfbbede652cfd2f1760f2ae027",
    "cross_cats_sorted": [
      "cs.LG",
      "eess.AS"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.SD",
    "submitted_at": "2022-02-10T12:38:53Z",
    "title_canon_sha256": "ff50ccffce1fabe039d37aab813ea474b9faefb52d60da902f9ad2a5f4b70387"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2202.04989",
    "kind": "arxiv",
    "version": 2
  }
}