Pith Number

pith:NAHTFT4E

pith:2018:NAHTFT4EF3NAERZH5D34XP4VI6

not attested not anchored not stored refs pending

Turbulent channel flow over an anisotropic porous wall - Drag increase and reduction

Alfredo Pinelli, Luca Brandt, Marco Edoardo Rosti

arxiv:1802.00477 v1 · 2018-02-01 · 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{NAHTFT4EF3NAERZH5D34XP4VI6}

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	2026-05-18T00:24:33.080407Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

680f32cf842eda024727e8f7cbbf95479447e0590a80ddf9597c2659a25b7267

Aliases

arxiv: 1802.00477 · arxiv_version: 1802.00477v1 · doi: 10.48550/arxiv.1802.00477 · pith_short_12: NAHTFT4EF3NA · pith_short_16: NAHTFT4EF3NAERZH · pith_short_8: NAHTFT4E

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/NAHTFT4EF3NAERZH5D34XP4VI6 \
  | 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: 680f32cf842eda024727e8f7cbbf95479447e0590a80ddf9597c2659a25b7267

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b6fad1b63d2d63cff26630c21c033f123556c91629b3c140ff8d808cc6e46e43",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.flu-dyn",
    "submitted_at": "2018-02-01T20:21:05Z",
    "title_canon_sha256": "4672ae4f9f1b4c8629cbbd7559985005e65575b7495fab0fc0282297a6daf674"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1802.00477",
    "kind": "arxiv",
    "version": 1
  }
}