Pith Number

pith:NNYPCMA5

pith:2019:NNYPCMA54HNU7657JTFHUTJDJ5

not attested not anchored not stored refs pending

Understanding the Effects of Pre-Training for Object Detectors via Eigenspectrum

Edgar Simo-Serra, Taiji Suzuki, Yosuke Shinya

arxiv:1909.04021 v1 · 2019-09-09 · cs.CV · cs.LG · 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{NNYPCMA54HNU7657JTFHUTJDJ5}

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	2026-07-05T00:03:10.872746Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6b70f1301de1db4ffbbf4cca7a4d234f6f60f344520814ddde56ab8f05927cb6

Aliases

arxiv: 1909.04021 · arxiv_version: 1909.04021v1 · doi: 10.48550/arxiv.1909.04021 · pith_short_12: NNYPCMA54HNU · pith_short_16: NNYPCMA54HNU7657 · pith_short_8: NNYPCMA5

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/NNYPCMA54HNU7657JTFHUTJDJ5 \
  | 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: 6b70f1301de1db4ffbbf4cca7a4d234f6f60f344520814ddde56ab8f05927cb6

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "00c86ba5459e591c0be046614571dea9017818c792d832dcdee61e4d61f9961f",
    "cross_cats_sorted": [
      "cs.LG",
      "stat.ML"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CV",
    "submitted_at": "2019-09-09T17:59:11Z",
    "title_canon_sha256": "0d0bb507db1cfb13e875cb3911ef87511463c0824c47c60414c413ffc9ffd953"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1909.04021",
    "kind": "arxiv",
    "version": 1
  }
}