Pith Number

pith:ETSH256F

pith:2023:ETSH256FLY6KTUMKSZDJN2S4ZI

not attested not anchored not stored refs pending

Developing a cost-effective emulator for groundwater flow modeling using deep neural operators

He Wang, Jonathan Nuttall, Maria Luisa Taccari, Peter K. Jimack, Somdatta Goswami, Xiaohui Chen

arxiv:2304.12299 v1 · 2023-03-05 · physics.flu-dyn · cs.CE

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{ETSH256FLY6KTUMKSZDJN2S4ZI}

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	2026-07-05T06:03:50.111704Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

24e47d77c55e3ca9d18a964696ea5cca3b8079a8ada9d4e1ad9dec8f42f1d45c

Aliases

arxiv: 2304.12299 · arxiv_version: 2304.12299v1 · doi: 10.48550/arxiv.2304.12299 · pith_short_12: ETSH256FLY6K · pith_short_16: ETSH256FLY6KTUMK · pith_short_8: ETSH256F

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/ETSH256FLY6KTUMKSZDJN2S4ZI \
  | 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: 24e47d77c55e3ca9d18a964696ea5cca3b8079a8ada9d4e1ad9dec8f42f1d45c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "07ddd3fc4637fd14c4b6767eb3a4590430f5bc54f1a97149b50742937e92ad36",
    "cross_cats_sorted": [
      "cs.CE"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "physics.flu-dyn",
    "submitted_at": "2023-03-05T15:05:13Z",
    "title_canon_sha256": "ebc2f4a255c37f5d2822e2a16b5b901a51e6de2b3976ace15d71a34b7310ef91"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2304.12299",
    "kind": "arxiv",
    "version": 1
  }
}