Pith Number

pith:IPX7LVKV

pith:2026:IPX7LVKVWXYEUYAFVJ5FGVTYXL

not attested not anchored not stored refs pending

Stream function -- pressure virtual element methods for the Stokes--Darcy interface problem

Andres E. Rubiano, David Mora, Franco Dassi, Rekha Khot, Ricardo Ruiz-Baier

arxiv:2607.01622 v1 · 2026-07-02 · math.NA · cs.NA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{IPX7LVKVWXYEUYAFVJ5FGVTYXL}

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	2026-07-03T01:17:03.612836Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

43eff5d555b5f04a6005aa7a535678bac2b8dd962d3d8ca8c1cb7b3fb1ec75da

Aliases

arxiv: 2607.01622 · arxiv_version: 2607.01622v1 · doi: 10.48550/arxiv.2607.01622 · pith_short_12: IPX7LVKVWXYE · pith_short_16: IPX7LVKVWXYEUYAF · pith_short_8: IPX7LVKV

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/IPX7LVKVWXYEUYAFVJ5FGVTYXL \
  | 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: 43eff5d555b5f04a6005aa7a535678bac2b8dd962d3d8ca8c1cb7b3fb1ec75da

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5cbd4e44be728ec4f67854dc013844d7e505121d9dd5ffc0f74e8af5c2d22493",
    "cross_cats_sorted": [
      "cs.NA"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2026-07-02T02:41:53Z",
    "title_canon_sha256": "78f804774e043898547d0900986bdca2e02cbed04f9ef6639fce9d52d4003e87"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2607.01622",
    "kind": "arxiv",
    "version": 1
  }
}