Pith Number

pith:7MK2P44F

pith:2013:7MK2P44FHDVFAWCT7JGZB2FIH6

not attested not anchored not stored refs pending

Instability of a viscous flow between rotating porous cylinders with radial flow

Andrey Morgulis, Konstantin Ilin

arxiv:1312.2594 v1 · 2013-12-09 · physics.flu-dyn · math-ph · math.MP

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{7MK2P44FHDVFAWCT7JGZB2FIH6}

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	2026-05-18T01:45:52.385844Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

fb15a7f38538ea505853fa4d90e8a83fb4cc691ae7290db9de2251568b69d241

Aliases

arxiv: 1312.2594 · arxiv_version: 1312.2594v1 · doi: 10.48550/arxiv.1312.2594 · pith_short_12: 7MK2P44FHDVF · pith_short_16: 7MK2P44FHDVFAWCT · pith_short_8: 7MK2P44F

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/7MK2P44FHDVFAWCT7JGZB2FIH6 \
  | 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: fb15a7f38538ea505853fa4d90e8a83fb4cc691ae7290db9de2251568b69d241

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4462f5e33c23048ef0c95c3b75124156457cef45b4cfdb040612502c5f19db35",
    "cross_cats_sorted": [
      "math-ph",
      "math.MP"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.flu-dyn",
    "submitted_at": "2013-12-09T21:04:08Z",
    "title_canon_sha256": "4521e31c06345aeeba34a90000b3ff4ea00ebe8072a2a93aaabc205dc2f7593d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1312.2594",
    "kind": "arxiv",
    "version": 1
  }
}