Pith Number

pith:ZEYTPO4D

pith:2021:ZEYTPO4DFRWI3XQSHWZJHQCQIP

not attested not anchored not stored refs pending

Air-cushioning effect and Kelvin-Helmholtz instability before the slamming of a disk on water

Anais Gauthier, Detlef Lohse, Devaraj van der Meer, Utkarsh Jain

arxiv:2106.09551 v1 · 2021-06-17 · physics.flu-dyn · 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{ZEYTPO4DFRWI3XQSHWZJHQCQIP}

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	2026-07-05T02:50:17.235974Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c93137bb832c6c8dde123db293c05043e955aba3face76018305af91748395e2

Aliases

arxiv: 2106.09551 · arxiv_version: 2106.09551v1 · doi: 10.48550/arxiv.2106.09551 · pith_short_12: ZEYTPO4DFRWI · pith_short_16: ZEYTPO4DFRWI3XQS · pith_short_8: ZEYTPO4D

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/ZEYTPO4DFRWI3XQSHWZJHQCQIP \
  | 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: c93137bb832c6c8dde123db293c05043e955aba3face76018305af91748395e2

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3b069d0072d449cd2b015c3f1ebba4eb98e79dbdbd853664866460a3b8cf3002",
    "cross_cats_sorted": [
      "physics.class-ph"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "physics.flu-dyn",
    "submitted_at": "2021-06-17T14:33:19Z",
    "title_canon_sha256": "20ddb9e82ca66336031c77b0cd041d9ce4cbbd66b76ebfd637fc701eb6413325"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2106.09551",
    "kind": "arxiv",
    "version": 1
  }
}