Pith Number

pith:RGXRADVQ

pith:2018:RGXRADVQ4KJBWRTW2E6VCHL7AM

not attested not anchored not stored refs pending

Torchbearer: A Model Fitting Library for PyTorch

Ethan Harris, Jonathon Hare, Matthew Painter

arxiv:1809.03363 v1 · 2018-09-10 · cs.LG · cs.AI · cs.CV · 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{RGXRADVQ4KJBWRTW2E6VCHL7AM}

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	2026-05-18T00:06:07.083910Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

89af100eb0e2921b4676d13d511d7f032b1e63a94427bf00d81df60dd57f6f10

Aliases

arxiv: 1809.03363 · arxiv_version: 1809.03363v1 · doi: 10.48550/arxiv.1809.03363 · pith_short_12: RGXRADVQ4KJB · pith_short_16: RGXRADVQ4KJBWRTW · pith_short_8: RGXRADVQ

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/RGXRADVQ4KJBWRTW2E6VCHL7AM \
  | 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: 89af100eb0e2921b4676d13d511d7f032b1e63a94427bf00d81df60dd57f6f10

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9e290616038d5796ea9ae9ff57cf16b4daaca45d99b4e235dc6b0a75a0294602",
    "cross_cats_sorted": [
      "cs.AI",
      "cs.CV",
      "stat.ML"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.LG",
    "submitted_at": "2018-09-10T14:46:35Z",
    "title_canon_sha256": "6dfddf2cb7b0306d4256fc7ce4446904e4b6bf9a2465b713a02e2598ca1c2a14"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1809.03363",
    "kind": "arxiv",
    "version": 1
  }
}