Pith Number

pith:4GHDFMBS

pith:2020:4GHDFMBSNE7ZJTYD54NHYN7AAF

not attested not anchored not stored refs pending

Research on rolling friction's dependence on ball bearings' radius

Grzegorz M. Koczan, Juliusz Ziomek

arxiv:2008.08127 v1 · 2020-08-18 · physics.pop-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{4GHDFMBSNE7ZJTYD54NHYN7AAF}

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	2026-07-05T01:28:22.779670Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e18e32b032693f94cf03ef1a7c37e0015555ce3339c7de7d97813bc8572426db

Aliases

arxiv: 2008.08127 · arxiv_version: 2008.08127v1 · doi: 10.48550/arxiv.2008.08127 · pith_short_12: 4GHDFMBSNE7Z · pith_short_16: 4GHDFMBSNE7ZJTYD · pith_short_8: 4GHDFMBS

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/4GHDFMBSNE7ZJTYD54NHYN7AAF \
  | 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: e18e32b032693f94cf03ef1a7c37e0015555ce3339c7de7d97813bc8572426db

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a37544aedcd108e852b3e7e699c7f8265c90730f75d7e2131912503b7de79f92",
    "cross_cats_sorted": [
      "physics.class-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.pop-ph",
    "submitted_at": "2020-08-18T19:17:20Z",
    "title_canon_sha256": "4d9a27105433becccfc85a15550048032f49c5edcdd50a54a48bbda1a7c24c63"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2008.08127",
    "kind": "arxiv",
    "version": 1
  }
}