Pith Number

pith:NAU7GMIJ

pith:2017:NAU7GMIJRVDSPW2VDFT7SX6GZY

not attested not anchored not stored refs pending

Toward Active Learning in Cross-domain Recommender Systems

Massimo Quadrana, Mehdi Elahi, Paolo Cremonesi, Roberto Pagano

arxiv:1701.02021 v1 · 2017-01-08 · 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{NAU7GMIJRVDSPW2VDFT7SX6GZY}

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	2026-05-18T00:53:11.821567Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6829f331098d4727db551967f95fc6ce14fb400851687bd88464fe6b54700c8c

Aliases

arxiv: 1701.02021 · arxiv_version: 1701.02021v1 · doi: 10.48550/arxiv.1701.02021 · pith_short_12: NAU7GMIJRVDS · pith_short_16: NAU7GMIJRVDSPW2V · pith_short_8: NAU7GMIJ

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/NAU7GMIJRVDSPW2VDFT7SX6GZY \
  | 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: 6829f331098d4727db551967f95fc6ce14fb400851687bd88464fe6b54700c8c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "743b9019b07c9eaec43e2ffa362bac6f5bfe95c7603ca4cc9e8c4a8908dbb2b8",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IR",
    "submitted_at": "2017-01-08T21:47:45Z",
    "title_canon_sha256": "00d0470361da8f3364b0a2357345739fe5d6ea805a9719349e00e0a049cce27d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1701.02021",
    "kind": "arxiv",
    "version": 1
  }
}