Pith Number

pith:Y5OXI2CB

pith:2020:Y5OXI2CBPOPXWKG52EA2FYCI44

not attested not anchored not stored refs pending

How to do Physics-based Learning

Laura Waller, Michael Kellman, Michael Lustig

arxiv:2005.13531 v2 · 2020-05-27 · eess.IV · cs.CV · eess.SP

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{Y5OXI2CBPOPXWKG52EA2FYCI44}

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	2026-07-05T01:06:22.895971Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c75d7468417b9f7b28ddd101a2e048e730a41610135a97b56201b5f6fe1f4a99

Aliases

arxiv: 2005.13531 · arxiv_version: 2005.13531v2 · doi: 10.48550/arxiv.2005.13531 · pith_short_12: Y5OXI2CBPOPX · pith_short_16: Y5OXI2CBPOPXWKG5 · pith_short_8: Y5OXI2CB

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/Y5OXI2CBPOPXWKG52EA2FYCI44 \
  | 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: c75d7468417b9f7b28ddd101a2e048e730a41610135a97b56201b5f6fe1f4a99

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e8cc8f24b226bad6f4a3d1dd4b06f5eba51760b054a03d6b5c71fd0594ac9629",
    "cross_cats_sorted": [
      "cs.CV",
      "eess.SP"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "eess.IV",
    "submitted_at": "2020-05-27T17:54:45Z",
    "title_canon_sha256": "f7833e834c39ea770404b74be179ee3e21b523fd3475268277e84ea2cbbb5613"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2005.13531",
    "kind": "arxiv",
    "version": 2
  }
}