Pith Number

pith:RBCB237D

pith:2021:RBCB237DKXDGL5DGQ4RPWOCI4U

not attested not anchored not stored refs pending

Graph neural networks for laminar flow prediction around random 2D shapes

Elie Hachem, Jonathan Viquerat, Junfeng Chen

arxiv:2107.11529 v2 · 2021-07-20 · physics.flu-dyn · physics.comp-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{RBCB237DKXDGL5DGQ4RPWOCI4U}

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	2026-07-05T03:42:44.742609Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

88441d6fe355c665f4668722fb3848e5242db9b2645a3c6fb063a53674d0e7d7

Aliases

arxiv: 2107.11529 · arxiv_version: 2107.11529v2 · doi: 10.48550/arxiv.2107.11529 · pith_short_12: RBCB237DKXDG · pith_short_16: RBCB237DKXDGL5DG · pith_short_8: RBCB237D

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/RBCB237DKXDGL5DGQ4RPWOCI4U \
  | 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: 88441d6fe355c665f4668722fb3848e5242db9b2645a3c6fb063a53674d0e7d7

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c69ad9ce9316f6e574595b188055656c9de897d8fc82a40156b201cc432f5f86",
    "cross_cats_sorted": [
      "physics.comp-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.flu-dyn",
    "submitted_at": "2021-07-20T12:37:36Z",
    "title_canon_sha256": "bfc3927255a77258a06a7e20eccaf2293f594b1f01ddaa1ae807a01377f1adde"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2107.11529",
    "kind": "arxiv",
    "version": 2
  }
}