Pith Number

pith:HUEU3VMR

pith:2019:HUEU3VMRKS7PYKJGFNFKDWLNJ5

not attested not anchored not stored refs pending

The Kelvin-Helmholtz instability and smoothed particle hydrodynamics

Terrence S. Tricco

arxiv:1908.04893 v1 · 2019-08-14 · astro-ph.IM · astro-ph.CO · astro-ph.GA · astro-ph.SR

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{HUEU3VMRKS7PYKJGFNFKDWLNJ5}

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	2026-07-05T00:03:00.477432Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3d094dd59154befc29262b4aa1d96d4f5699c7cb83f60dc7913ed92ec863e96a

Aliases

arxiv: 1908.04893 · arxiv_version: 1908.04893v1 · doi: 10.48550/arxiv.1908.04893 · pith_short_12: HUEU3VMRKS7P · pith_short_16: HUEU3VMRKS7PYKJG · pith_short_8: HUEU3VMR

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/HUEU3VMRKS7PYKJGFNFKDWLNJ5 \
  | 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: 3d094dd59154befc29262b4aa1d96d4f5699c7cb83f60dc7913ed92ec863e96a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8fec0a26d0cba1fb8bf553cd885623c247280e7e234661ac5f3246108e9fb387",
    "cross_cats_sorted": [
      "astro-ph.CO",
      "astro-ph.GA",
      "astro-ph.SR"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.IM",
    "submitted_at": "2019-08-14T00:13:33Z",
    "title_canon_sha256": "3c42b78040da34bfad512d51b46ab1176ed42344473ba3e8f496a7e0e78f98d1"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1908.04893",
    "kind": "arxiv",
    "version": 1
  }
}