Pith Number

pith:EJX2MODA

pith:2013:EJX2MODAXGACKSLSOL5PV2YLPJ

not attested not anchored not stored refs pending

Addressing learning difficulties in Newtons 1st and 3rd Laws through problem based inquiry using Easy Java Simulation

Khoon Song Aloysius Goh, Kim Wah Yip, Loo Kang Wee, Ping Yong Jeffrey Toh, Sze Yee Lye

arxiv:1303.0081 v3 · 2013-03-01 · physics.ed-ph · physics.comp-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{EJX2MODAXGACKSLSOL5PV2YLPJ}

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	2026-05-18T03:12:22.353113Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

226fa63860b98025497272fafaeb0b7a63de5342ff20b772b8ea38d8a441d6e8

Aliases

arxiv: 1303.0081 · arxiv_version: 1303.0081v3 · doi: 10.48550/arxiv.1303.0081 · pith_short_12: EJX2MODAXGAC · pith_short_16: EJX2MODAXGACKSLS · pith_short_8: EJX2MODA

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/EJX2MODAXGACKSLSOL5PV2YLPJ \
  | 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: 226fa63860b98025497272fafaeb0b7a63de5342ff20b772b8ea38d8a441d6e8

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8435c476cd1a0be1ecc3fd2a4b2aeace16b91029b565c05919244764bc5f57bc",
    "cross_cats_sorted": [
      "physics.comp-ph"
    ],
    "license": "http://creativecommons.org/licenses/by/3.0/",
    "primary_cat": "physics.ed-ph",
    "submitted_at": "2013-03-01T04:06:59Z",
    "title_canon_sha256": "7d6d8dcf8911e0492351ce00f8c736c7c21502d2b5f86a12b2c1fab4e1c351a2"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1303.0081",
    "kind": "arxiv",
    "version": 3
  }
}