Pith Number

pith:ZL5F6AL4

pith:2020:ZL5F6AL4WWNXOEVC5KWKZASLRE

not attested not anchored not stored refs pending

Learning Video Object Segmentation from Unlabeled Videos

David Crandall, Jianbing Shen, Steven C. H. Hoi, Wenguan Wang, Xiankai Lu, Yu-Wing Tai

arxiv:2003.05020 v1 · 2020-03-10 · 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{ZL5F6AL4WWNXOEVC5KWKZASLRE}

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	2026-07-05T00:47:20.564739Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

cafa5f017cb59b7712a2eaacac824b89345aafae9c4cb52aaaaf5153bff4d70c

Aliases

arxiv: 2003.05020 · arxiv_version: 2003.05020v1 · doi: 10.48550/arxiv.2003.05020 · pith_short_12: ZL5F6AL4WWNX · pith_short_16: ZL5F6AL4WWNXOEVC · pith_short_8: ZL5F6AL4

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/ZL5F6AL4WWNXOEVC5KWKZASLRE \
  | 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: cafa5f017cb59b7712a2eaacac824b89345aafae9c4cb52aaaaf5153bff4d70c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1806a7453586668929e52c77c0ac0dde5de66c11cbe8de2ba448bee7bbb7a252",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CV",
    "submitted_at": "2020-03-10T22:12:15Z",
    "title_canon_sha256": "5d18ae6aca9c6a7baa21bcafa605946ad20edb333eb1b8fd78b733d7a27ecc32"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2003.05020",
    "kind": "arxiv",
    "version": 1
  }
}