Pith Number

pith:HKCQYBMQ

pith:2021:HKCQYBMQMG5FXO6CHQM5OYXYGP

not attested not anchored not stored refs pending

Using Comics to Introduce and Reinforce Programming Concepts in CS1

Bernadette Cheng, Celine Latulipe, Edith Law, Ken Jen Lee, Sangho Suh

arxiv:2109.13197 v2 · 2021-09-27 · 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{HKCQYBMQMG5FXO6CHQM5OYXYGP}

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	2026-07-05T03:18:00.829178Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3a850c059061ba5bbbc23c19d762f833fe395d684e8dfbaabfca9735a25b17b3

Aliases

arxiv: 2109.13197 · arxiv_version: 2109.13197v2 · doi: 10.48550/arxiv.2109.13197 · pith_short_12: HKCQYBMQMG5F · pith_short_16: HKCQYBMQMG5FXO6C · pith_short_8: HKCQYBMQ

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/HKCQYBMQMG5FXO6CHQM5OYXYGP \
  | 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: 3a850c059061ba5bbbc23c19d762f833fe395d684e8dfbaabfca9735a25b17b3

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d99d61651255b91e4f744fd7c38701fd542000e152571c88a3e0b1c524f9e907",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CY",
    "submitted_at": "2021-09-27T17:17:11Z",
    "title_canon_sha256": "24faf2701a3d953a2a0661c02b59cfef5b3a3a2da27b519476e8122f00961d8b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2109.13197",
    "kind": "arxiv",
    "version": 2
  }
}