Pith Number

pith:IH2Q5YKA

pith:2014:IH2Q5YKACKP7RWIT3NW6F5GD3X

not attested not anchored not stored refs pending

Kaggle LSHTC4 Winning Solution

Albert Bifet, Antti Puurula, Jesse Read

arxiv:1405.0546 v2 · 2014-05-03 · cs.AI · cs.CL · cs.IR

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{IH2Q5YKACKP7RWIT3NW6F5GD3X}

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	2026-05-18T02:52:13.795028Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

41f50ee140129ff8d913db6de2f4c3ddfa933677187e80a4ce73c5313d0d57c9

Aliases

arxiv: 1405.0546 · arxiv_version: 1405.0546v2 · doi: 10.48550/arxiv.1405.0546 · pith_short_12: IH2Q5YKACKP7 · pith_short_16: IH2Q5YKACKP7RWIT · pith_short_8: IH2Q5YKA

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/IH2Q5YKACKP7RWIT3NW6F5GD3X \
  | 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: 41f50ee140129ff8d913db6de2f4c3ddfa933677187e80a4ce73c5313d0d57c9

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9d4d0f99a18e92bb400bb6948be4176d3c1a6db1f4909d11d52ba5c99a20edd6",
    "cross_cats_sorted": [
      "cs.CL",
      "cs.IR"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.AI",
    "submitted_at": "2014-05-03T01:41:27Z",
    "title_canon_sha256": "09fa8819d08753259c8f5a25fda6f220a868852285fb612911ab1f46a6d01d7c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1405.0546",
    "kind": "arxiv",
    "version": 2
  }
}