Pith Number

pith:PBY4PFPW

pith:2019:PBY4PFPWHVKP3TSQF7ZKYYARDX

not attested not anchored not stored refs pending

Comparison of block-based and hybrid-based environments in transferring programming skills to text-based environments

Hussein Alrubaye, Mohamed Wiem Mkaouer, Stephanie Ludi

arxiv:1906.03060 v2 · 2019-06-02 · 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{PBY4PFPWHVKP3TSQF7ZKYYARDX}

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	2026-07-05T00:20:52.869047Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7871c795f63d54fdce502ff2ac60111df2e55f536fee291f648e11badef60dab

Aliases

arxiv: 1906.03060 · arxiv_version: 1906.03060v2 · doi: 10.48550/arxiv.1906.03060 · pith_short_12: PBY4PFPWHVKP · pith_short_16: PBY4PFPWHVKP3TSQ · pith_short_8: PBY4PFPW

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/PBY4PFPWHVKP3TSQF7ZKYYARDX \
  | 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: 7871c795f63d54fdce502ff2ac60111df2e55f536fee291f648e11badef60dab

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "50edce5c9ce18fea9d10ed8a8f878c439bfa91d944ca739413c879f32a443a9a",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CY",
    "submitted_at": "2019-06-02T13:34:09Z",
    "title_canon_sha256": "2fe114d78faf742ea76a9686c254eb5fa92de691361c01f7456a9e6ebd5f26aa"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1906.03060",
    "kind": "arxiv",
    "version": 2
  }
}