Pith Number

pith:UX5EII7M

pith:2025:UX5EII7MGUD7JHLOS3AJ52KF2U

not attested not anchored not stored refs pending

Data assimilation with model errors

Aytekin \c{C}ibik, Farjana Siddiqua, Rui Fang, William Layton

arxiv:2504.16291 v1 · 2025-04-22 · math.NA · cs.NA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{UX5EII7MGUD7JHLOS3AJ52KF2U}

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.

Cited by

2 papers in Pith

Continuous Data Assimilation with Learned Surrogate Dynamics

Data assimilation for slightly compressible flow

Receipt and verification

First computed	2026-07-05T10:52:44.317745Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a5fa4423ec3507f49d6e96c09ee945d50047e5890eb81b604a3b2113c094656d

Aliases

arxiv: 2504.16291 · arxiv_version: 2504.16291v1 · doi: 10.48550/arxiv.2504.16291 · pith_short_12: UX5EII7MGUD7 · pith_short_16: UX5EII7MGUD7JHLO · pith_short_8: UX5EII7M

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/UX5EII7MGUD7JHLOS3AJ52KF2U \
  | 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: a5fa4423ec3507f49d6e96c09ee945d50047e5890eb81b604a3b2113c094656d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "06d16d60a3af36af3c0028220b6867b1abb5b41097714739e3b00be96801f648",
    "cross_cats_sorted": [
      "cs.NA"
    ],
    "license": "http://creativecommons.org/licenses/by-nc-nd/4.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2025-04-22T22:01:56Z",
    "title_canon_sha256": "fef2a64bdef047caea22c09878046d7a415d880e0e084425f107a2044d79bc04"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2504.16291",
    "kind": "arxiv",
    "version": 1
  }
}