Pith Number

pith:SWHZV5PQ

pith:2015:SWHZV5PQH422QRYY4XZCCYSSEZ

not attested not anchored not stored refs pending

Automatic Synthesis of Geometry Problems for an Intelligent Tutoring System

Chris Alvin, Rupak Majumdar, Sumit Gulwani, Supratik Mukhopadhyay

arxiv:1510.08525 v1 · 2015-10-29 · 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{SWHZV5PQH422QRYY4XZCCYSSEZ}

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	2026-05-18T01:28:28.675951Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

958f9af5f03f35a84718e5f2216252266c410a2a3663bd53475225a31ef5fa27

Aliases

arxiv: 1510.08525 · arxiv_version: 1510.08525v1 · doi: 10.48550/arxiv.1510.08525 · pith_short_12: SWHZV5PQH422 · pith_short_16: SWHZV5PQH422QRYY · pith_short_8: SWHZV5PQ

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/SWHZV5PQH422QRYY4XZCCYSSEZ \
  | 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: 958f9af5f03f35a84718e5f2216252266c410a2a3663bd53475225a31ef5fa27

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5ed4e04efb94a9ed6bea4881aa6212c3ec80527ef61d0c0c84f45b834680d81d",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.AI",
    "submitted_at": "2015-10-29T00:10:03Z",
    "title_canon_sha256": "bd8501122e361d328d4546ee6e64be56096260c75f4f2b52b680563585ba31e7"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1510.08525",
    "kind": "arxiv",
    "version": 1
  }
}