Pith Number

pith:CMFEOYJ4

pith:2020:CMFEOYJ4WNAF7GGQLRDNWTCRMR

not attested not anchored not stored refs pending

Characterizing the turbulent drag properties of rough surfaces with a Taylor--Couette setup

Christian J. K\"ahler, Daniel Chung, Detlef Lohse, Pieter Berghout, Pim A. Bullee, Sander G. Huisman, Sven Scharnowski, Thomas Fuchs

arxiv:2009.06442 v1 · 2020-09-14 · physics.flu-dyn

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{CMFEOYJ4WNAF7GGQLRDNWTCRMR}

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	2026-07-05T02:49:12.462685Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

130a47613cb3405f98d05c46db4c51647458add717f9c18db0943b0cde26e521

Aliases

arxiv: 2009.06442 · arxiv_version: 2009.06442v1 · doi: 10.48550/arxiv.2009.06442 · pith_short_12: CMFEOYJ4WNAF · pith_short_16: CMFEOYJ4WNAF7GGQ · pith_short_8: CMFEOYJ4

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/CMFEOYJ4WNAF7GGQLRDNWTCRMR \
  | 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: 130a47613cb3405f98d05c46db4c51647458add717f9c18db0943b0cde26e521

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "25c5f0c757cc884aa7183c38ec669a84461ea9b3bb5bbd59aadf3032c7d889be",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.flu-dyn",
    "submitted_at": "2020-09-14T13:57:47Z",
    "title_canon_sha256": "0d71b8c6c87ff1f7947032aad56e9ebf25cc6a65ea6506f565bfb5a9c77ce16c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2009.06442",
    "kind": "arxiv",
    "version": 1
  }
}