Pith Number

pith:Z4ZYVG3R

pith:2017:Z4ZYVG3RAZGJXNGBP2PKPTAVZY

not attested not anchored not stored refs pending

Mechanics and special relativity: tutorial problems with solutions

Z.K. Silagadze

arxiv:1711.01670 v2 · 2017-11-05 · physics.ed-ph · physics.class-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{Z4ZYVG3RAZGJXNGBP2PKPTAVZY}

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	2026-05-18T00:16:14.206788Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

cf338a9b71064c9bb4c17e9ea7cc15ce36fa0d63ac95bd54456fffe8d30e9ae7

Aliases

arxiv: 1711.01670 · arxiv_version: 1711.01670v2 · doi: 10.48550/arxiv.1711.01670 · pith_short_12: Z4ZYVG3RAZGJ · pith_short_16: Z4ZYVG3RAZGJXNGB · pith_short_8: Z4ZYVG3R

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/Z4ZYVG3RAZGJXNGBP2PKPTAVZY \
  | 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: cf338a9b71064c9bb4c17e9ea7cc15ce36fa0d63ac95bd54456fffe8d30e9ae7

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ba389cff69422ab7209276239bc9847ab52f8771eacf042e118f37d171884c4e",
    "cross_cats_sorted": [
      "physics.class-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.ed-ph",
    "submitted_at": "2017-11-05T22:39:01Z",
    "title_canon_sha256": "f29db91849bacb9b26a4cd6c038a3ff8579303d3017250771289075b340060eb"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1711.01670",
    "kind": "arxiv",
    "version": 2
  }
}