Pith Number

pith:VB23V3KP

pith:2017:VB23V3KPHMBWQT4WMYDPNX5Z3B

not attested not anchored not stored refs pending

Sparse Named Entity Classification using Factorization Machines

Ai Hirata, Mamoru Komachi

arxiv:1703.04879 v1 · 2017-03-15 · cs.CL

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{VB23V3KPHMBWQT4WMYDPNX5Z3B}

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	2026-05-18T00:48:38.993837Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a875baed4f3b03684f966606f6dfb9d86bbeb18658180782a78e3eeeda158c0d

Aliases

arxiv: 1703.04879 · arxiv_version: 1703.04879v1 · doi: 10.48550/arxiv.1703.04879 · pith_short_12: VB23V3KPHMBW · pith_short_16: VB23V3KPHMBWQT4W · pith_short_8: VB23V3KP

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/VB23V3KPHMBWQT4WMYDPNX5Z3B \
  | 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: a875baed4f3b03684f966606f6dfb9d86bbeb18658180782a78e3eeeda158c0d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f4f886a05a2629fa3f4a741c78e19db648196c11fc4addb724c9607f1e4e2c00",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by-sa/4.0/",
    "primary_cat": "cs.CL",
    "submitted_at": "2017-03-15T01:54:52Z",
    "title_canon_sha256": "c64088f75f71f94fd61fb76326a6faa77817197cd54fe42b5839c374e0e415ed"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1703.04879",
    "kind": "arxiv",
    "version": 1
  }
}