Pith Number

pith:RTZ4GQ7K

pith:2019:RTZ4GQ7KLXUFVOF5HUUEG4I5IP

not attested not anchored not stored refs pending

Mastery Learning-Like Teaching with Achievements

Elias Castegren, Tobias Wrigstad

arxiv:1906.03510 v1 · 2019-06-08 · 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{RTZ4GQ7KLXUFVOF5HUUEG4I5IP}

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	2026-05-17T23:43:48.246573Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8cf3c343ea5de85ab8bd3d2843711d43eb85b7ce6f5180e0c13d4b84c240fd0a

Aliases

arxiv: 1906.03510 · arxiv_version: 1906.03510v1 · doi: 10.48550/arxiv.1906.03510 · pith_short_12: RTZ4GQ7KLXUF · pith_short_16: RTZ4GQ7KLXUFVOF5 · pith_short_8: RTZ4GQ7K

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/RTZ4GQ7KLXUFVOF5HUUEG4I5IP \
  | 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: 8cf3c343ea5de85ab8bd3d2843711d43eb85b7ce6f5180e0c13d4b84c240fd0a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "20a8bd8e65ead0c2532d7633a5049e3e97f880d7d719c0ee05298e55b6485b63",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.CY",
    "submitted_at": "2019-06-08T19:33:32Z",
    "title_canon_sha256": "272cd5a031c6f6bdf05c75d7cfa76d9bc118c0c4f240b4369b3a04bc1cf4f249"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1906.03510",
    "kind": "arxiv",
    "version": 1
  }
}