Pith Number

pith:I2NIHBWG

pith:2026:I2NIHBWG7G62WPTLACWXUTQ4R5

not attested not anchored not stored refs pending

A derivation of viscous thin film flow equations on curved surfaces

J. A. Hanna, R. S. Hutton

arxiv:2605.23800 v1 · 2026-05-22 · 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{I2NIHBWG7G62WPTLACWXUTQ4R5}

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	2026-05-25T02:02:33.159847Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

469a8386c6f9bdab3e6b00ad7a4e1c8f6353c491dc5f036568f691ab89ad16d5

Aliases

arxiv: 2605.23800 · arxiv_version: 2605.23800v1 · doi: 10.48550/arxiv.2605.23800 · pith_short_12: I2NIHBWG7G62 · pith_short_16: I2NIHBWG7G62WPTL · pith_short_8: I2NIHBWG

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/I2NIHBWG7G62WPTLACWXUTQ4R5 \
  | 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: 469a8386c6f9bdab3e6b00ad7a4e1c8f6353c491dc5f036568f691ab89ad16d5

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "259a081fa7feb305949727611d0e52245f65dcbfa0df4bd2ac14e14759d546f2",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.flu-dyn",
    "submitted_at": "2026-05-22T15:58:53Z",
    "title_canon_sha256": "6d25f2d44dc31db20035fca5f463e3f2639e40d8027ab23d8bb665f2fd47d66e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2605.23800",
    "kind": "arxiv",
    "version": 1
  }
}