Pith Number

pith:ETANDGEY

pith:2015:ETANDGEYKLDCMGIZHZIR3624JL

not attested not anchored not stored refs pending

The Atwood machine revisited using smartphones

Arturo C. Marti, Cecilia Cabeza, Cecilia Stari, Mart\'in Monteiro

arxiv:1506.04119 v1 · 2015-06-12 · 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{ETANDGEYKLDCMGIZHZIR3624JL}

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	2026-05-18T01:34:16.190746Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

24c0d1989852c62619193e511dfb5c4ad2bde8a8b7610658733ae133671b4f8f

Aliases

arxiv: 1506.04119 · arxiv_version: 1506.04119v1 · doi: 10.48550/arxiv.1506.04119 · pith_short_12: ETANDGEYKLDC · pith_short_16: ETANDGEYKLDCMGIZ · pith_short_8: ETANDGEY

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/ETANDGEYKLDCMGIZHZIR3624JL \
  | 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: 24c0d1989852c62619193e511dfb5c4ad2bde8a8b7610658733ae133671b4f8f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9055e0ece3a00bedf1ba25d88e241e7fead34331d8c03112000ec972803ac894",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.ed-ph",
    "submitted_at": "2015-06-12T19:03:35Z",
    "title_canon_sha256": "218839268eee1bacf7166e0463f351b8798409a1b65c5615b540074a4a6771e7"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1506.04119",
    "kind": "arxiv",
    "version": 1
  }
}