Pith Number

pith:5OYU4W3Z

pith:2025:5OYU4W3Z3CUGG33JUBEVARGICU

not attested not anchored not stored refs pending

Update hydrological states or meteorological forcings? Comparing data assimilation methods for differentiable hydrologic models

Amirmoez Jamaat, Chaopeng Shen, Farshid Rahmani, Jiangtao Liu, Kathryn Lawson, Yalan Song

arxiv:2502.16444 v1 · 2025-02-23 · physics.flu-dyn · cs.LG · physics.ao-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{5OYU4W3Z3CUGG33JUBEVARGICU}

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	2026-07-05T10:18:53.612468Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ebb14e5b79d8a8636f69a0495044c81520e88ee8a76f8760a704ae8a2ce758e0

Aliases

arxiv: 2502.16444 · arxiv_version: 2502.16444v1 · doi: 10.48550/arxiv.2502.16444 · pith_short_12: 5OYU4W3Z3CUG · pith_short_16: 5OYU4W3Z3CUGG33J · pith_short_8: 5OYU4W3Z

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/5OYU4W3Z3CUGG33JUBEVARGICU \
  | 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: ebb14e5b79d8a8636f69a0495044c81520e88ee8a76f8760a704ae8a2ce758e0

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d10774cd8557cf23ca23716f8c0e00417a65fdbfaec7cbc444e2aa08b6371d24",
    "cross_cats_sorted": [
      "cs.LG",
      "physics.ao-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.flu-dyn",
    "submitted_at": "2025-02-23T05:08:05Z",
    "title_canon_sha256": "08c63220e2805346b0f772f75fd7248ac21f33832fed9a3ff9b57a21aaae2d86"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2502.16444",
    "kind": "arxiv",
    "version": 1
  }
}