Pith Number

pith:EQ3N2L4C

pith:2021:EQ3N2L4C3TBFAIL2LIK7APQL4Z

not attested not anchored not stored refs pending

Semantic TrueLearn: Using Semantic Knowledge Graphs in Recommendation Systems

Emine Yilmaz, John Shawe-Taylor, Mar\'ia P\'erez-Ortiz, Sahan Bulathwela

arxiv:2112.04368 v1 · 2021-12-08 · cs.IR · cs.AI · cs.CY · stat.AP · stat.ML

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{EQ3N2L4C3TBFAIL2LIK7APQL4Z}

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	2026-07-05T03:39:08.945441Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2436dd2f82dcc250217a5a15f03e0be6409f1a5cfae49d7b3a7baa1b2f1262c3

Aliases

arxiv: 2112.04368 · arxiv_version: 2112.04368v1 · doi: 10.48550/arxiv.2112.04368 · pith_short_12: EQ3N2L4C3TBF · pith_short_16: EQ3N2L4C3TBFAIL2 · pith_short_8: EQ3N2L4C

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/EQ3N2L4C3TBFAIL2LIK7APQL4Z \
  | 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: 2436dd2f82dcc250217a5a15f03e0be6409f1a5cfae49d7b3a7baa1b2f1262c3

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "87610128dc59b269ba93e4c9dbd582fbcd2ae007fd72ae1e39304782090bfe25",
    "cross_cats_sorted": [
      "cs.AI",
      "cs.CY",
      "stat.AP",
      "stat.ML"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IR",
    "submitted_at": "2021-12-08T16:23:27Z",
    "title_canon_sha256": "788afe0ea0c24083a26735fc8017e7d24315f0d88548c7cb2e3fb3357381af4d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2112.04368",
    "kind": "arxiv",
    "version": 1
  }
}