Pith Number

pith:OXPQB66D

pith:2014:OXPQB66DMQGHAHXIB2CRMJHYQB

not attested not anchored not stored refs pending

A Tablet Based Learning Environment

Hong Cao

arxiv:1403.6006 v1 · 2014-03-24 · cs.CY · 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{OXPQB66DMQGHAHXIB2CRMJHYQB}

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	2026-05-18T02:55:47.201431Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

75df00fbc3640c701ee80e851624f880465a48aa91ccd9ed2dc291baba6446cc

Aliases

arxiv: 1403.6006 · arxiv_version: 1403.6006v1 · doi: 10.48550/arxiv.1403.6006 · pith_short_12: OXPQB66DMQGH · pith_short_16: OXPQB66DMQGHAHXI · pith_short_8: OXPQB66D

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/OXPQB66DMQGHAHXIB2CRMJHYQB \
  | 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: 75df00fbc3640c701ee80e851624f880465a48aa91ccd9ed2dc291baba6446cc

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "36548487887c2f0cd63572791062b3ae85c6890e3c658c614fe28b56579f9bc6",
    "cross_cats_sorted": [
      "cs.HC"
    ],
    "license": "http://creativecommons.org/licenses/by-nc-sa/3.0/",
    "primary_cat": "cs.CY",
    "submitted_at": "2014-03-24T15:39:43Z",
    "title_canon_sha256": "e8903a663fec5bf6d5946f4c4d14fdc0ead708e33a5028bccc683f81009d8e98"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1403.6006",
    "kind": "arxiv",
    "version": 1
  }
}