Pith Number

pith:54RYVYDW

pith:2022:54RYVYDWU6PYS5KIG6HEO2TXZZ

not attested not anchored not stored refs pending

Discrepancy Modeling Framework: Learning missing physics, modeling systematic residuals, and disambiguating between deterministic and random effects

J. Nathan Kutz, Katherine M. Steele, Megan R. Ebers

arxiv:2203.05164 v2 · 2022-03-10 · stat.ML · math.DS

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{54RYVYDWU6PYS5KIG6HEO2TXZZ}

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	2026-07-05T07:08:03.373917Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ef238ae076a79f897548378e476a77ce5476febc648bf2a5e4b851dac1d34fa2

Aliases

arxiv: 2203.05164 · arxiv_version: 2203.05164v2 · doi: 10.48550/arxiv.2203.05164 · pith_short_12: 54RYVYDWU6PY · pith_short_16: 54RYVYDWU6PYS5KI · pith_short_8: 54RYVYDW

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/54RYVYDWU6PYS5KIG6HEO2TXZZ \
  | 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: ef238ae076a79f897548378e476a77ce5476febc648bf2a5e4b851dac1d34fa2

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "612c362769acd58e1edf06a38a7f6ae93c28dcc921c93fc22638bdc7d35808d0",
    "cross_cats_sorted": [
      "math.DS"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "stat.ML",
    "submitted_at": "2022-03-10T05:37:24Z",
    "title_canon_sha256": "4b4cbc4fc8e4a368f01331308eed1e70a92ef09b2923057dfc3819c084d731c9"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2203.05164",
    "kind": "arxiv",
    "version": 2
  }
}