Pith Number

pith:2G7L5YSC

pith:2017:2G7L5YSC4IBBUEMEFAX3BXP5X4

not attested not anchored not stored refs pending

Data-Driven Feedback Generation for Introductory Programming Exercises

Ke Wang, Rishabh Singh, Zhendong Su

arxiv:1711.07148 v1 · 2017-11-20 · cs.PL · cs.CY · cs.SE

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{2G7L5YSC4IBBUEMEFAX3BXP5X4}

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	2026-05-18T00:30:12.105119Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d1bebee242e2021a1184282fb0ddfdbf02588080ecf0e30fdbdb9ee38beadf05

Aliases

arxiv: 1711.07148 · arxiv_version: 1711.07148v1 · doi: 10.48550/arxiv.1711.07148 · pith_short_12: 2G7L5YSC4IBB · pith_short_16: 2G7L5YSC4IBBUEME · pith_short_8: 2G7L5YSC

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/2G7L5YSC4IBBUEMEFAX3BXP5X4 \
  | 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: d1bebee242e2021a1184282fb0ddfdbf02588080ecf0e30fdbdb9ee38beadf05

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d12c9464f3293c619095e631fe0267ed3bde487d24456f7fd02b00ca7632fc3b",
    "cross_cats_sorted": [
      "cs.CY",
      "cs.SE"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.PL",
    "submitted_at": "2017-11-20T05:08:48Z",
    "title_canon_sha256": "e84d6bb06912525d1d188185b42e2ffca87372fa6705fbe0b82ebf0b33e82f4a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1711.07148",
    "kind": "arxiv",
    "version": 1
  }
}