Pith Number

pith:YUPWD7JA

pith:2021:YUPWD7JATRDENOYCINC3YQPMIM

not attested not anchored not stored refs pending

Learning structure-aware semantic segmentation with image-level supervision

Jiawei Liu, Jing Zhang, Nick Barnes, Yicong Hong

arxiv:2104.07216 v1 · 2021-04-15 · 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{YUPWD7JATRDENOYCINC3YQPMIM}

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	2026-07-05T03:46:01.363369Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c51f61fd209c4646bb024345bc41ec43172becdaaa5a244b55ec039572ef7871

Aliases

arxiv: 2104.07216 · arxiv_version: 2104.07216v1 · doi: 10.48550/arxiv.2104.07216 · pith_short_12: YUPWD7JATRDE · pith_short_16: YUPWD7JATRDENOYC · pith_short_8: YUPWD7JA

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/YUPWD7JATRDENOYCINC3YQPMIM \
  | 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: c51f61fd209c4646bb024345bc41ec43172becdaaa5a244b55ec039572ef7871

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c22a2dc089d38a5001d3ad47fc8c3c1df241b825bcad2efe487fc622b2b4d32a",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CV",
    "submitted_at": "2021-04-15T03:33:20Z",
    "title_canon_sha256": "be843dbeb4f2894930fd1d1c3a3defb4d0596109d80cd1f898892cbc2d263603"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2104.07216",
    "kind": "arxiv",
    "version": 1
  }
}