Pith Number

pith:JA33PM4M

pith:2021:JA33PM4M7C6EPFYQQJPC3OIAP2

not attested not anchored not stored refs pending

Music Demixing Challenge 2021

Alexandre D\'efossez, Chin-Yun Yu, Fabian-Robert St\"oter, Giorgio Fabbro, Kin-Wai Cheuk, Minseok Kim, Stefan Uhlich, Woosung Choi, Yuki Mitsufuji

arxiv:2108.13559 v3 · 2021-08-31 · eess.AS · 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{JA33PM4M7C6EPFYQQJPC3OIAP2}

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	2026-07-05T04:25:11.851401Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

4837b7b38cf8bc479710825e2db9007e82ea682771d576c40b492089a9a14ba6

Aliases

arxiv: 2108.13559 · arxiv_version: 2108.13559v3 · doi: 10.48550/arxiv.2108.13559 · pith_short_12: JA33PM4M7C6E · pith_short_16: JA33PM4M7C6EPFYQ · pith_short_8: JA33PM4M

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/JA33PM4M7C6EPFYQQJPC3OIAP2 \
  | 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: 4837b7b38cf8bc479710825e2db9007e82ea682771d576c40b492089a9a14ba6

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c74637ed0e354e446cbfc33081b6fdbaa74a1aaacfd3b533baeabba93a347bfb",
    "cross_cats_sorted": [
      "cs.SD"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "eess.AS",
    "submitted_at": "2021-08-31T00:12:48Z",
    "title_canon_sha256": "f674bb3ab70d3449b0a6680f84d9e384f6154bbd4e43d76b1a111fe81c3f7fee"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2108.13559",
    "kind": "arxiv",
    "version": 3
  }
}