Pith Number

pith:MPWYDU2U

pith:2019:MPWYDU2UPZWTAJM3JURU5W3VPM

not attested not anchored not stored refs pending

Towards Learning Affine-Invariant Representations via Data-Efficient CNNs

Alan Sullivan, Guanghui Wang, Xenju Xu, Ziming Zhang

arxiv:1909.00114 v1 · 2019-08-31 · cs.CV

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{MPWYDU2UPZWTAJM3JURU5W3VPM}

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	2026-07-05T00:01:05.615858Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

63ed81d3547e6d30259b4d234edb757b2574b7845e879a0fcb8c1422c64be753

Aliases

arxiv: 1909.00114 · arxiv_version: 1909.00114v1 · doi: 10.48550/arxiv.1909.00114 · pith_short_12: MPWYDU2UPZWT · pith_short_16: MPWYDU2UPZWTAJM3 · pith_short_8: MPWYDU2U

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/MPWYDU2UPZWTAJM3JURU5W3VPM \
  | 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: 63ed81d3547e6d30259b4d234edb757b2574b7845e879a0fcb8c1422c64be753

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a1bbc46fbffa9b5ad13680b8002db402ff8fe1a08ca98e0c00ec8e0b92f8b4dc",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CV",
    "submitted_at": "2019-08-31T03:11:59Z",
    "title_canon_sha256": "953ad10b5c1895f2caa48638698cef5b920f00c9c5f5991e92ab02ff396237c6"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1909.00114",
    "kind": "arxiv",
    "version": 1
  }
}