Pith Number

pith:PT3CX5B6

pith:2020:PT3CX5B625754W6TPUGIJSEIHO

not attested not anchored not stored refs pending

Learning Similarity Metrics for Numerical Simulations

Georg Kohl, Kiwon Um, Nils Thuerey

arxiv:2002.07863 v2 · 2020-02-18 · cs.LG · physics.data-an · physics.flu-dyn · 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{PT3CX5B625754W6TPUGIJSEIHO}

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	2026-07-05T02:10:24.113900Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7cf62bf43ed77fde5bd37d0c84c8883baa9b79505422d63b1d41a5b7d18e57ea

Aliases

arxiv: 2002.07863 · arxiv_version: 2002.07863v2 · doi: 10.48550/arxiv.2002.07863 · pith_short_12: PT3CX5B62575 · pith_short_16: PT3CX5B625754W6T · pith_short_8: PT3CX5B6

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/PT3CX5B625754W6TPUGIJSEIHO \
  | 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: 7cf62bf43ed77fde5bd37d0c84c8883baa9b79505422d63b1d41a5b7d18e57ea

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e953ae31be1c78499010f0b1e02bbd7b7ac82af90fce6ac7813433274a6e7a8e",
    "cross_cats_sorted": [
      "physics.data-an",
      "physics.flu-dyn",
      "stat.ML"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.LG",
    "submitted_at": "2020-02-18T20:11:15Z",
    "title_canon_sha256": "1847019e91a497f41bfd6f0754e9218838d0f4c2ac46a7d8ae3efb399028753a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2002.07863",
    "kind": "arxiv",
    "version": 2
  }
}