Pith Number

pith:IWO7XA7H

pith:2011:IWO7XA7HVFS4UTM5SMCUOASSDQ

not attested not anchored not stored refs pending

An extension of the momentum transfer model to time-dependent pipe turbulence

Esteban Calzetta

arxiv:1109.4401 v4 · 2011-09-20 · 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{IWO7XA7HVFS4UTM5SMCUOASSDQ}

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	2026-05-18T02:00:27.568240Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

459dfb83e7a965ca4d9d93054702521c1b85868f07070283866e44cd7f905a4a

Aliases

arxiv: 1109.4401 · arxiv_version: 1109.4401v4 · doi: 10.48550/arxiv.1109.4401 · pith_short_12: IWO7XA7HVFS4 · pith_short_16: IWO7XA7HVFS4UTM5 · pith_short_8: IWO7XA7H

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/IWO7XA7HVFS4UTM5SMCUOASSDQ \
  | 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: 459dfb83e7a965ca4d9d93054702521c1b85868f07070283866e44cd7f905a4a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4c5dc1b94cadb3e741fb19b7939dc1da1b6596393c6bc6f80610ff02b063d13e",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.flu-dyn",
    "submitted_at": "2011-09-20T19:32:27Z",
    "title_canon_sha256": "934f5371a7d64ba9341b0474007f32fc015c268ed3c1597f50131213ec1f5d41"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1109.4401",
    "kind": "arxiv",
    "version": 4
  }
}