Pith Number

pith:2BCCGP4N

pith:2013:2BCCGP4NGA46DZN4HEZQVWCZ7R

not attested not anchored not stored refs pending

A Scratch-like visual programming system for Microsoft Windows Phone 8

Annemarie Harzl, Maximilian Schafzahl, Philipp Neidhoefer, Valentin Rock, Wolfgang Slany

arxiv:1310.1390 v1 · 2013-10-06 · cs.CY · cs.HC · cs.SE

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{2BCCGP4NGA46DZN4HEZQVWCZ7R}

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	2026-05-18T03:11:12.168165Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d044233f8d3039e1e5bc39330ad859fc6b93454dcca3a27e0b82bb3ac7aa8b99

Aliases

arxiv: 1310.1390 · arxiv_version: 1310.1390v1 · doi: 10.48550/arxiv.1310.1390 · pith_short_12: 2BCCGP4NGA46 · pith_short_16: 2BCCGP4NGA46DZN4 · pith_short_8: 2BCCGP4N

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/2BCCGP4NGA46DZN4HEZQVWCZ7R \
  | 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: d044233f8d3039e1e5bc39330ad859fc6b93454dcca3a27e0b82bb3ac7aa8b99

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "52cb1f6b0ee2a3094916412a2c9641822f678586373f5b2a0e6bb03bae794712",
    "cross_cats_sorted": [
      "cs.HC",
      "cs.SE"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CY",
    "submitted_at": "2013-10-06T06:57:55Z",
    "title_canon_sha256": "3fa98b48177d2f71e7eea60d91f86232d5086739f7ffb8973b061ae2eb7c6576"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1310.1390",
    "kind": "arxiv",
    "version": 1
  }
}