Pith Number

pith:5ZN7CKMJ

pith:2018:5ZN7CKMJS4H6NCRWIY5IG45ELZ

not attested not anchored not stored refs pending

Taking Informed Action on Student Activity in MOOCs

Jan Renz, Kai-Adrian Rollmann, Ralf Teusner

arxiv:1809.08884 v1 · 2018-09-21 · 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{5ZN7CKMJS4H6NCRWIY5IG45ELZ}

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	2026-05-18T00:05:03.300035Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ee5bf12989970fe68a36463a8373a45e43e441a8594d8aeb51e56fba5d9e6f92

Aliases

arxiv: 1809.08884 · arxiv_version: 1809.08884v1 · doi: 10.48550/arxiv.1809.08884 · pith_short_12: 5ZN7CKMJS4H6 · pith_short_16: 5ZN7CKMJS4H6NCRW · pith_short_8: 5ZN7CKMJ

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/5ZN7CKMJS4H6NCRWIY5IG45ELZ \
  | 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: ee5bf12989970fe68a36463a8373a45e43e441a8594d8aeb51e56fba5d9e6f92

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5474abdaae898b70f91080dd674d15017bd3a1c86fb93d469e2b9fed12bdfee6",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.HC",
    "submitted_at": "2018-09-21T09:59:03Z",
    "title_canon_sha256": "74845e03b00534d1c36b9d3973d608780106b1dc1623893402d420c7b5698a1d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1809.08884",
    "kind": "arxiv",
    "version": 1
  }
}