Pith Number

pith:LRF3PH4C

pith:2017:LRF3PH4CEXT22KPDVEXQO3DWXE

not attested not anchored not stored refs pending

Twitter Hashtag Recommendation using Matrix Factorization

Hamidreza Alvari

arxiv:1705.10453 v1 · 2017-05-30 · cs.SI · 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{LRF3PH4CEXT22KPDVEXQO3DWXE}

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	2026-05-18T00:43:24.543264Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

5c4bb79f8225e7ad29e3a92f076c76b931c1484474851fb1400379fa818ed4fb

Aliases

arxiv: 1705.10453 · arxiv_version: 1705.10453v1 · doi: 10.48550/arxiv.1705.10453 · pith_short_12: LRF3PH4CEXT2 · pith_short_16: LRF3PH4CEXT22KPD · pith_short_8: LRF3PH4C

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/LRF3PH4CEXT22KPDVEXQO3DWXE \
  | 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: 5c4bb79f8225e7ad29e3a92f076c76b931c1484474851fb1400379fa818ed4fb

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "bb0af6a88f8fa6bac8e05b4868e79b3c84502b1d268ba7774349b827e42e19c5",
    "cross_cats_sorted": [
      "cs.IR"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.SI",
    "submitted_at": "2017-05-30T04:28:28Z",
    "title_canon_sha256": "7d48fc5ebf684ca1547dbcf7dca9320180abd1c077ff6572e338b819aa2dbbad"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1705.10453",
    "kind": "arxiv",
    "version": 1
  }
}