Pith Number

pith:XDGZFD2I

pith:2011:XDGZFD2IRRFHDIDWY5J52KZBUP

not attested not anchored not stored refs pending

Implementing and assessing computational modeling in introductory mechanics

Marcos D. Caballero, Matthew A. Kohlmyer, Michael F. Schatz

arxiv:1107.5216 v3 · 2011-07-26 · physics.ed-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{XDGZFD2IRRFHDIDWY5J52KZBUP}

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	2026-05-18T02:01:09.707141Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b8cd928f488c4a71a076c753dd2b21a3d1ba128562cd849b336f94f761335d8a

Aliases

arxiv: 1107.5216 · arxiv_version: 1107.5216v3 · doi: 10.48550/arxiv.1107.5216 · pith_short_12: XDGZFD2IRRFH · pith_short_16: XDGZFD2IRRFHDIDW · pith_short_8: XDGZFD2I

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/XDGZFD2IRRFHDIDWY5J52KZBUP \
  | 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: b8cd928f488c4a71a076c753dd2b21a3d1ba128562cd849b336f94f761335d8a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "401a8f6bc232605f8f264decaad1f0953da017dd3837408d3783910f78b6f35e",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.ed-ph",
    "submitted_at": "2011-07-26T13:58:34Z",
    "title_canon_sha256": "e4cdce7e74f945797ab284f44df7fdb902ec654a27bb23c30c0489f7d9fa8c9b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1107.5216",
    "kind": "arxiv",
    "version": 3
  }
}