Pith Number

pith:NFYISAL3

pith:2025:NFYISAL3WMMPMV3CPAB72CVG2V

not attested not anchored not stored refs pending

Enhanced State Estimation for turbulent flows combining Ensemble Data Assimilation and Machine Learning

Marcello Meldi, Miguel M. Valero

arxiv:2501.18262 v1 · 2025-01-30 · 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{NFYISAL3WMMPMV3CPAB72CVG2V}

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	2026-07-05T10:07:31.809289Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

697089017bb318f657627803fd0aa6d54d7cf34957f844aff56ef9b2ddc9e9d1

Aliases

arxiv: 2501.18262 · arxiv_version: 2501.18262v1 · doi: 10.48550/arxiv.2501.18262 · pith_short_12: NFYISAL3WMMP · pith_short_16: NFYISAL3WMMPMV3C · pith_short_8: NFYISAL3

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/NFYISAL3WMMPMV3CPAB72CVG2V \
  | 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: 697089017bb318f657627803fd0aa6d54d7cf34957f844aff56ef9b2ddc9e9d1

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9f244b7b81645cb38dbc9a787e2e777bf606134536f49394c03df5a7fab39887",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "physics.flu-dyn",
    "submitted_at": "2025-01-30T10:46:17Z",
    "title_canon_sha256": "f96319454b56b6090a6916dd12a235f9c7d96156f097e23b8ab832f8dd8a350e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2501.18262",
    "kind": "arxiv",
    "version": 1
  }
}