Pith Number

pith:QWMMDM4O

pith:2018:QWMMDM4OMI3EHZFA2F4J6YNF4N

not attested not anchored not stored refs pending

Chalktalk : A Visualization and Communication Language -- As a Tool in the Domain of Computer Science Education

Karl Rosenberg, Ken Perlin, Zhenyi He

arxiv:1809.07166 v1 · 2018-09-19 · 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{QWMMDM4OMI3EHZFA2F4J6YNF4N}

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.

Cited by

1 paper in Pith

InSituTale: Enhancing Augmented Data Storytelling with Physical Objects

Receipt and verification

First computed	2026-05-18T00:05:20.521187Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8598c1b38e623643e4a0d1789f61a5e3439bff80eda656a1278a02a30fb3bb8c

Aliases

arxiv: 1809.07166 · arxiv_version: 1809.07166v1 · doi: 10.48550/arxiv.1809.07166 · pith_short_12: QWMMDM4OMI3E · pith_short_16: QWMMDM4OMI3EHZFA · pith_short_8: QWMMDM4O

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/QWMMDM4OMI3EHZFA2F4J6YNF4N \
  | 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: 8598c1b38e623643e4a0d1789f61a5e3439bff80eda656a1278a02a30fb3bb8c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4e4fd4ed3054c229075ab4193d618fbd3e3393eaae22630fb08a1554c7996b17",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.HC",
    "submitted_at": "2018-09-19T13:14:54Z",
    "title_canon_sha256": "6d6254663d6960fcb51aad62b25f559937619501202d2176a4b7ccd31907905b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1809.07166",
    "kind": "arxiv",
    "version": 1
  }
}