Pith Number

pith:O2BUURFM

pith:2019:O2BUURFMPBNESJVPAXIZYSMX55

not attested not anchored not stored refs pending

Efficient Segmentation: Learning Downsampling Near Semantic Boundaries

Dmitrii Marin, Fei Yang, Peter Vajda, Priyam Chatterjee, Sam Tsai, Yuri Boykov, Zijian He

arxiv:1907.07156 v1 · 2019-07-16 · cs.CV · cs.LG

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{O2BUURFMPBNESJVPAXIZYSMX55}

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	2026-05-17T23:40:27.865165Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

76834a44ac785a4926af05d19c4997ef55ada23aa0505cf47b21c52aa3a76859

Aliases

arxiv: 1907.07156 · arxiv_version: 1907.07156v1 · doi: 10.48550/arxiv.1907.07156 · pith_short_12: O2BUURFMPBNE · pith_short_16: O2BUURFMPBNESJVP · pith_short_8: O2BUURFM

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/O2BUURFMPBNESJVPAXIZYSMX55 \
  | 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: 76834a44ac785a4926af05d19c4997ef55ada23aa0505cf47b21c52aa3a76859

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ac7573882e079d481bbea898a160b3137b42c1abd3c8dbf9156d7eab78197b8b",
    "cross_cats_sorted": [
      "cs.LG"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CV",
    "submitted_at": "2019-07-16T17:27:21Z",
    "title_canon_sha256": "9eeceed5a33560dec4418c0caeb54f586de3a9b1da712887240c7fd8f6a75e0f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1907.07156",
    "kind": "arxiv",
    "version": 1
  }
}