Pith Number

pith:RVDPF3LF

pith:2013:RVDPF3LFQLCHEDDBXOIW5MNY2A

not attested not anchored not stored refs pending

A Case Study in Knowledge Discovery and Elicitation in an Intelligent Tutoring Application

Ann Nicholson, Kaye Stacey, Liz Sonenberg, Tal Boneh, Tim Wilkin, Vicki Steinle

arxiv:1301.2297 v1 · 2013-01-10 · cs.AI

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{RVDPF3LFQLCHEDDBXOIW5MNY2A}

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	2026-05-18T03:36:45.492029Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8d46f2ed6582c4720c61bb916eb1b8d024b5d508e6008eca84f465d82153f481

Aliases

arxiv: 1301.2297 · arxiv_version: 1301.2297v1 · doi: 10.48550/arxiv.1301.2297 · pith_short_12: RVDPF3LFQLCH · pith_short_16: RVDPF3LFQLCHEDDB · pith_short_8: RVDPF3LF

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/RVDPF3LFQLCHEDDBXOIW5MNY2A \
  | 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: 8d46f2ed6582c4720c61bb916eb1b8d024b5d508e6008eca84f465d82153f481

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "dda11ef0ae4bc2be2458c6c996f57cdfbefb373d94911756ec5e42148ec01ad6",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.AI",
    "submitted_at": "2013-01-10T16:25:34Z",
    "title_canon_sha256": "15b0e3291a454beaa5364fe2ee8cbbebe636f00306f42e3acf0bef13fe0d5ebe"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1301.2297",
    "kind": "arxiv",
    "version": 1
  }
}