Pith Number

pith:U2B2NMLE

pith:2025:U2B2NMLEGUSJXOYSMQS75RZVMX

not attested not anchored not stored refs pending

Physics-informed, boundary-constrained Gaussian process regression for the reconstruction of fluid flow fields

Adrian Padilla-Segarra, \'Eric Savin, Olivier Roustant, Pascal Noble

arxiv:2507.17582 v4 · 2025-07-23 · physics.flu-dyn · stat.ML

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{U2B2NMLEGUSJXOYSMQS75RZVMX}

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	2026-06-01T01:02:17.889968Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a683a6b16435249bbb126425fec73565c0be1371af00cb90c327f6d7b12852a2

Aliases

arxiv: 2507.17582 · arxiv_version: 2507.17582v4 · doi: 10.48550/arxiv.2507.17582 · pith_short_12: U2B2NMLEGUSJ · pith_short_16: U2B2NMLEGUSJXOYS · pith_short_8: U2B2NMLE

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/U2B2NMLEGUSJXOYSMQS75RZVMX \
  | 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: a683a6b16435249bbb126425fec73565c0be1371af00cb90c327f6d7b12852a2

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "58b43152ba9091bab96fc860a0027a289b36a98b3eacc5fd3b03919f0ad45946",
    "cross_cats_sorted": [
      "stat.ML"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.flu-dyn",
    "submitted_at": "2025-07-23T15:18:15Z",
    "title_canon_sha256": "d34b98d5179b2f17b0a96c831ad0ded3d7bf6c57ae49bab6736fc7e6827615c6"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2507.17582",
    "kind": "arxiv",
    "version": 4
  }
}