Pith Number

pith:QWJFFZWO

pith:2011:QWJFFZWOAVLSVYJG252OT6O4OK

not attested not anchored not stored refs pending

Learning content similarity for music recommendation

Brian McFee, Gert Lanckriet, Luke Barrington

arxiv:1105.2344 v1 · 2011-05-12 · cs.MM

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{QWJFFZWOAVLSVYJG252OT6O4OK}

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	2026-05-18T04:22:10.700029Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

859252e6ce05572ae126d774e9f9dc72826278af4b37727c0429780339878f44

Aliases

arxiv: 1105.2344 · arxiv_version: 1105.2344v1 · doi: 10.48550/arxiv.1105.2344 · pith_short_12: QWJFFZWOAVLS · pith_short_16: QWJFFZWOAVLSVYJG · pith_short_8: QWJFFZWO

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/QWJFFZWOAVLSVYJG252OT6O4OK \
  | 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: 859252e6ce05572ae126d774e9f9dc72826278af4b37727c0429780339878f44

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8240465f697a2d65f0062739ec6bb518c0ecc1a096309cde007c268815fb52f2",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.MM",
    "submitted_at": "2011-05-12T00:43:46Z",
    "title_canon_sha256": "04755ca09e1057d388d898df1024b505255f061d18860d8bbc71b0f950e67d30"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1105.2344",
    "kind": "arxiv",
    "version": 1
  }
}