Pith Number

pith:SPKUM5LN

pith:2018:SPKUM5LN2NHP36VIXU6GEMTMFJ

not attested not anchored not stored refs pending

Goal-based Course Recommendation

Qiang Wei, Weijie Jiang, Zachary A. Pardos

arxiv:1812.10078 v1 · 2018-12-25 · cs.AI · cs.CY

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{SPKUM5LN2NHP36VIXU6GEMTMFJ}

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	2026-05-17T23:57:25.154874Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

93d546756dd34efdfaa8bd3c62326c2a5708cef822ebeca6796a335847c4fb8f

Aliases

arxiv: 1812.10078 · arxiv_version: 1812.10078v1 · doi: 10.48550/arxiv.1812.10078 · pith_short_12: SPKUM5LN2NHP · pith_short_16: SPKUM5LN2NHP36VI · pith_short_8: SPKUM5LN

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/SPKUM5LN2NHP36VIXU6GEMTMFJ \
  | 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: 93d546756dd34efdfaa8bd3c62326c2a5708cef822ebeca6796a335847c4fb8f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "33141bd1d10d5fe3c7e5525df9a96e1f7628d6e873503000e4e2713dd01735a9",
    "cross_cats_sorted": [
      "cs.CY"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.AI",
    "submitted_at": "2018-12-25T09:30:46Z",
    "title_canon_sha256": "8965ab383502a7bfd160b1ec9851e84ba8dce8637c4bc9265316c2d2129434fd"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1812.10078",
    "kind": "arxiv",
    "version": 1
  }
}