Pith Number

pith:YPXCKV3Y

pith:2007:YPXCKV3YKBOL6DO7P425Z46AWV

not attested not anchored not stored refs pending

Newton's 2nd Law and the Physics of Dance

David J. Popalisky, Kristina Chiapella, Richard P. Barber Jr., Rose Hacking

arxiv:0706.2717 v1 · 2007-06-19 · 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{YPXCKV3YKBOL6DO7P425Z46AWV}

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	2026-07-04T15:02:18.877957Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c3ee255778505cbf0ddf7f35dcf3c0b57dd19b5ca57c9351611b7f58bf49cc54

Aliases

arxiv: 0706.2717 · arxiv_version: 0706.2717v1 · doi: 10.48550/arxiv.0706.2717 · pith_short_12: YPXCKV3YKBOL · pith_short_16: YPXCKV3YKBOL6DO7 · pith_short_8: YPXCKV3Y

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/YPXCKV3YKBOL6DO7P425Z46AWV \
  | 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: c3ee255778505cbf0ddf7f35dcf3c0b57dd19b5ca57c9351611b7f58bf49cc54

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a1a2cb261217faf86bf843519b934cc4216a1cdba4ea8e0b980797928a1b948c",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "physics.ed-ph",
    "submitted_at": "2007-06-19T05:48:58Z",
    "title_canon_sha256": "3939d54a5d08db585493272815195d7a46aeca0e20373514c35aa56fe4f17e30"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0706.2717",
    "kind": "arxiv",
    "version": 1
  }
}