Pith Number

pith:INTCSEBJ

pith:2024:INTCSEBJBWFNT7PNXVB5ODMFEK

not attested not anchored not stored refs pending

Handwritten Code Recognition for Pen-and-Paper CS Education

Chris Piech, Christopher D. Manning, Md Sazzad Islam, Moussa Koulako Bala Doumbouya

arxiv:2408.07220 v1 · 2024-08-07 · cs.CV · cs.AI · cs.CY · cs.HC

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{INTCSEBJBWFNT7PNXVB5ODMFEK}

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	2026-07-05T08:55:12.424650Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

43662910290d8ad9fdedbd43d70d8522924207cd92de87c2acabe88fadd1b8ec

Aliases

arxiv: 2408.07220 · arxiv_version: 2408.07220v1 · doi: 10.48550/arxiv.2408.07220 · pith_short_12: INTCSEBJBWFN · pith_short_16: INTCSEBJBWFNT7PN · pith_short_8: INTCSEBJ

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/INTCSEBJBWFNT7PNXVB5ODMFEK \
  | 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: 43662910290d8ad9fdedbd43d70d8522924207cd92de87c2acabe88fadd1b8ec

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "38332106ec6bff8f2fdb5b96d7d4c50580f9a76c222ea1f7a2ae8f913a79c049",
    "cross_cats_sorted": [
      "cs.AI",
      "cs.CY",
      "cs.HC"
    ],
    "license": "http://creativecommons.org/licenses/by-sa/4.0/",
    "primary_cat": "cs.CV",
    "submitted_at": "2024-08-07T21:02:17Z",
    "title_canon_sha256": "9e9f103f0ab9c3b68875f8c9c4c2f2d9f0e7c957285c1f14c43ff38784005764"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2408.07220",
    "kind": "arxiv",
    "version": 1
  }
}