Pith Number

pith:57RJESNZ

pith:2019:57RJESNZTQQTHA2JAN7ON34WKZ

not attested not anchored not stored refs pending

Modified Reynolds equation for steady flow through a curved pipe

Arpan Ghosh, Sergey Nazarov, Vladimir Kozlov

arxiv:1901.01953 v1 · 2019-01-07 · math-ph · math.AP · 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{57RJESNZTQQTHA2JAN7ON34WKZ}

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	2026-05-17T23:56:48.981558Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

efe29249b99c21338349037ee6ef965648f2c1c55adb0ebe278aa891aba0b8b5

Aliases

arxiv: 1901.01953 · arxiv_version: 1901.01953v1 · doi: 10.48550/arxiv.1901.01953 · pith_short_12: 57RJESNZTQQT · pith_short_16: 57RJESNZTQQTHA2J · pith_short_8: 57RJESNZ

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/57RJESNZTQQTHA2JAN7ON34WKZ \
  | 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: efe29249b99c21338349037ee6ef965648f2c1c55adb0ebe278aa891aba0b8b5

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "15837ae1d51be610be655eaacac7835a553f44a86dd89d5adc7ceea4c3cc9724",
    "cross_cats_sorted": [
      "math.AP",
      "math.MP"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math-ph",
    "submitted_at": "2019-01-07T18:05:26Z",
    "title_canon_sha256": "16267d998f192c858aeec742be5b16446ee2c1389f0935caa73eec6a2f0279b7"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1901.01953",
    "kind": "arxiv",
    "version": 1
  }
}