Pith Number

pith:KTDEFHRJ

pith:2018:KTDEFHRJXB6HA6HAML2RZHOAYD

not attested not anchored not stored refs pending

Ontology-based Adaptive e-Textbook Platform for Student and Machine Co-Learning

Chang-Shing Lee, Naoyuki Kubota, Noel Nuo Wi Tay, Sheng-Chi Yang

arxiv:1801.06664 v1 · 2018-01-20 · cs.DL · 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{KTDEFHRJXB6HA6HAML2RZHOAYD}

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	2026-05-18T00:25:28.078082Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

54c6429e29b87c7078e062f51c9dc0c0c39c7ccaaf1a80259c1585a97cdbe5ba

Aliases

arxiv: 1801.06664 · arxiv_version: 1801.06664v1 · doi: 10.48550/arxiv.1801.06664 · pith_short_12: KTDEFHRJXB6H · pith_short_16: KTDEFHRJXB6HA6HA · pith_short_8: KTDEFHRJ

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/KTDEFHRJXB6HA6HAML2RZHOAYD \
  | 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: 54c6429e29b87c7078e062f51c9dc0c0c39c7ccaaf1a80259c1585a97cdbe5ba

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9f33187f96054b6d10d7c31da85abe1df8941ada51fcb67e445671cd461d40e8",
    "cross_cats_sorted": [
      "cs.IR"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DL",
    "submitted_at": "2018-01-20T12:07:36Z",
    "title_canon_sha256": "42123c4a29a112e248deb6078a41670a9daddb21d34204e05c59821af7407d76"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1801.06664",
    "kind": "arxiv",
    "version": 1
  }
}