Pith Number

pith:TQHFA3VC

pith:2025:TQHFA3VCAD3L56WS7RFLLE5K5J

not attested not anchored not stored refs pending

Linear instability of plane Couette and Poiseuille flows

Alexander G. Chefranov, Sergey G. Chefranov

arxiv:2506.04242 v1 · 2025-05-28 · 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{TQHFA3VCAD3L56WS7RFLLE5K5J}

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	2026-07-05T11:16:10.929693Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

9c0e506ea200f6befad2fc4ab593aaea7a05448db63975e4cda786a966c9b384

Aliases

arxiv: 2506.04242 · arxiv_version: 2506.04242v1 · doi: 10.48550/arxiv.2506.04242 · pith_short_12: TQHFA3VCAD3L · pith_short_16: TQHFA3VCAD3L56WS · pith_short_8: TQHFA3VC

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/TQHFA3VCAD3L56WS7RFLLE5K5J \
  | 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: 9c0e506ea200f6befad2fc4ab593aaea7a05448db63975e4cda786a966c9b384

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a7e4f93dad3151c2b746700c5e71f7d10590df82731a6495eb86013f60427b81",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.flu-dyn",
    "submitted_at": "2025-05-28T20:10:39Z",
    "title_canon_sha256": "f8275e8fede4590a1352529cb1f7c465c25e3bc3313c1df37bc9e62a235e688c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2506.04242",
    "kind": "arxiv",
    "version": 1
  }
}