Pith Number

pith:H7JTG3LN

pith:2019:H7JTG3LNC4NYXMARTDDHCJDHIN

not attested not anchored not stored refs pending

A deep-learning-based surrogate model for data assimilation in dynamic subsurface flow problems

Louis J. Durlofsky, Meng Tang, Yimin Liu

arxiv:1908.05823 v1 · 2019-08-16 · cs.LG · physics.comp-ph · stat.ML

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{H7JTG3LNC4NYXMARTDDHCJDHIN}

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	2026-07-05T01:04:00.849158Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3fd3336d6d171b8bb01198c671246743685edd06ec3ab248153096aa38bdf7f2

Aliases

arxiv: 1908.05823 · arxiv_version: 1908.05823v1 · doi: 10.48550/arxiv.1908.05823 · pith_short_12: H7JTG3LNC4NY · pith_short_16: H7JTG3LNC4NYXMAR · pith_short_8: H7JTG3LN

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/H7JTG3LNC4NYXMARTDDHCJDHIN \
  | 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: 3fd3336d6d171b8bb01198c671246743685edd06ec3ab248153096aa38bdf7f2

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2bb373ad8fbf08b8066795426334cb68aeb91b2dd44891f40e23e41118862657",
    "cross_cats_sorted": [
      "physics.comp-ph",
      "stat.ML"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.LG",
    "submitted_at": "2019-08-16T03:02:34Z",
    "title_canon_sha256": "f3c4a37f144118d370a2b08762a02872399e07094b92cd8360ec83a18360f02c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1908.05823",
    "kind": "arxiv",
    "version": 1
  }
}