Pith Number

pith:KOFM2C74

pith:2012:KOFM2C74CNU3QNKUI6RETILWBU

not attested not anchored not stored refs pending

Using Tracker as a Pedagogical Tool for Understanding Projectile Motion

Charles Chew, Giam Hwee Goh, Loo Kang Wee, Samuel Tan, Tat Leong Lee

arxiv:1206.6489 v2 · 2012-06-27 · physics.ed-ph · physics.class-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{KOFM2C74CNU3QNKUI6RETILWBU}

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	2026-05-18T01:23:49.209141Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

538acd0bfc1369b8355447a249a1760d0e673c95102d3e70470882c48e3fded1

Aliases

arxiv: 1206.6489 · arxiv_version: 1206.6489v2 · doi: 10.48550/arxiv.1206.6489 · pith_short_12: KOFM2C74CNU3 · pith_short_16: KOFM2C74CNU3QNKU · pith_short_8: KOFM2C74

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/KOFM2C74CNU3QNKUI6RETILWBU \
  | 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: 538acd0bfc1369b8355447a249a1760d0e673c95102d3e70470882c48e3fded1

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0cf221714b2ef837d25280494084b979d771d792eedc90f47ce5f51a28b772ae",
    "cross_cats_sorted": [
      "physics.class-ph",
      "physics.comp-ph"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "physics.ed-ph",
    "submitted_at": "2012-06-27T03:20:32Z",
    "title_canon_sha256": "eb9ee5660d498754c03188c8a7a490e75e2a9a199b61e35405e4f638e8ccd215"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1206.6489",
    "kind": "arxiv",
    "version": 2
  }
}