Pith Number

pith:QDL7Y3QF

pith:2015:QDL7Y3QFFKLMOMECMTWV4KU65J

not attested not anchored not stored refs pending

Friction laws from dimensional-analysis point of view

Takahiro Hatano

arxiv:1508.04866 v1 · 2015-08-20 · physics.geo-ph · cond-mat.soft

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{QDL7Y3QFFKLMOMECMTWV4KU65J}

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	2026-05-18T01:35:00.388252Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

80d7fc6e052a96c7308264ed5e2a9eea48a997d6a90c8ecdc8f679aa021206f9

Aliases

arxiv: 1508.04866 · arxiv_version: 1508.04866v1 · doi: 10.48550/arxiv.1508.04866 · pith_short_12: QDL7Y3QFFKLM · pith_short_16: QDL7Y3QFFKLMOMEC · pith_short_8: QDL7Y3QF

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/QDL7Y3QFFKLMOMECMTWV4KU65J \
  | 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: 80d7fc6e052a96c7308264ed5e2a9eea48a997d6a90c8ecdc8f679aa021206f9

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "075a6f7aa7f7e780bdc74bf65e940bd3ec7b8ed3960109e70c042fbc318a793c",
    "cross_cats_sorted": [
      "cond-mat.soft"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.geo-ph",
    "submitted_at": "2015-08-20T03:34:24Z",
    "title_canon_sha256": "4131f3c3ea63c7ae7101fe7eeb92f8e80a734503a006505991b4152456de420d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1508.04866",
    "kind": "arxiv",
    "version": 1
  }
}