Pith Number

pith:VDGR4IM4

pith:2025:VDGR4IM4LPDCKTJCA2GLHVFESX

not attested not anchored not stored refs pending

A Physics-Augmented GraphGPS Framework for the Reconstruction of 3D Riemann Problems from Sparse Data

Rami Cassia, Rich Kerswell

arxiv:2505.21421 v1 · 2025-05-27 · physics.flu-dyn · cs.LG

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{VDGR4IM4LPDCKTJCA2GLHVFESX}

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	2026-07-05T11:10:41.719207Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a8cd1e219c5bc6254d22068cb3d4a495e56c1768d3925d3707cc8fd7abc8011e

Aliases

arxiv: 2505.21421 · arxiv_version: 2505.21421v1 · doi: 10.48550/arxiv.2505.21421 · pith_short_12: VDGR4IM4LPDC · pith_short_16: VDGR4IM4LPDCKTJC · pith_short_8: VDGR4IM4

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/VDGR4IM4LPDCKTJCA2GLHVFESX \
  | 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: a8cd1e219c5bc6254d22068cb3d4a495e56c1768d3925d3707cc8fd7abc8011e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b960456225bb65f79e57927c6a9bcd0e6ec9ffecf1cbc5a88b32c5a35bf3e699",
    "cross_cats_sorted": [
      "cs.LG"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.flu-dyn",
    "submitted_at": "2025-05-27T16:49:58Z",
    "title_canon_sha256": "1074c72df403d0906f3ef4a8dcbba16285e7aae38566dcb8fdefd7da86456aee"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2505.21421",
    "kind": "arxiv",
    "version": 1
  }
}