Pith Number

pith:27ZX74JI

pith:2017:27ZX74JITOTI6ANBHE2OEKI6HN

not attested not anchored not stored refs pending

Real-World Recommender Systems for Academia: The Pain and Gain in Building, Operating, and Researching them [Long Version]

Joeran Beel, Siddharth Dinesh

arxiv:1704.00156 v1 · 2017-04-01 · 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{27ZX74JITOTI6ANBHE2OEKI6HN}

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	2026-05-18T00:47:25.280818Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d7f37ff1289ba68f01a13934e2291e3b52e29197edc5041c2c66d882ea5756a9

Aliases

arxiv: 1704.00156 · arxiv_version: 1704.00156v1 · doi: 10.48550/arxiv.1704.00156 · pith_short_12: 27ZX74JITOTI · pith_short_16: 27ZX74JITOTI6ANB · pith_short_8: 27ZX74JI

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/27ZX74JITOTI6ANBHE2OEKI6HN \
  | 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: d7f37ff1289ba68f01a13934e2291e3b52e29197edc5041c2c66d882ea5756a9

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5bffdd654a8ff1a956679e4f19a4f841d2fe40b91c3d17bc86df8702894a1dce",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IR",
    "submitted_at": "2017-04-01T11:36:26Z",
    "title_canon_sha256": "4c463711ff08f9ed34ce62068de698fb8612871f2955950edfb7ed4229ffb0f9"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1704.00156",
    "kind": "arxiv",
    "version": 1
  }
}