Pith Number

pith:IBAWHDWY

pith:2026:IBAWHDWY6LM63L2X7OQBGY7SMT

not attested not anchored not stored refs pending

Input-schema identifiability limits in physics-informed surrogates for mechanics-governed flow

Andrzej Czyzewski, Daniel Cieslak

arxiv:2606.20655 v1 · 2026-06-08 · physics.comp-ph · cs.LG · 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{IBAWHDWY6LM63L2X7OQBGY7SMT}

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	2026-06-23T00:11:52.734364Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

4041638ed8f2d9edaf57fba01363f264c63148e38358b3214fba0ec1dd9712f5

Aliases

arxiv: 2606.20655 · arxiv_version: 2606.20655v1 · doi: 10.48550/arxiv.2606.20655 · pith_short_12: IBAWHDWY6LM6 · pith_short_16: IBAWHDWY6LM63L2X · pith_short_8: IBAWHDWY

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/IBAWHDWY6LM63L2X7OQBGY7SMT \
  | 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: 4041638ed8f2d9edaf57fba01363f264c63148e38358b3214fba0ec1dd9712f5

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e980ba7d0e86a31b9f9f2cb6300f4c2ae4d722179e7e1f3049187d28ec0dff8c",
    "cross_cats_sorted": [
      "cs.LG",
      "physics.flu-dyn"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.comp-ph",
    "submitted_at": "2026-06-08T23:22:18Z",
    "title_canon_sha256": "2d34d7095abae2e152b3ffc07ecb4ee27f0e1ac5887d6517b91d8a1cda2f5023"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2606.20655",
    "kind": "arxiv",
    "version": 1
  }
}