Pith Number

pith:YGSMBPE5

pith:2018:YGSMBPE5EUHSYZCRMZG56LDGNA

not attested not anchored not stored refs pending

Deep Crisp Boundaries: From Boundaries to Higher-level Tasks

Kaiqi Huang, Xin Zhao, Yin Li, Yupei Wang

arxiv:1801.02439 v3 · 2018-01-08 · 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{YGSMBPE5EUHSYZCRMZG56LDGNA}

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	2026-05-17T23:59:09.855135Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c1a4c0bc9d250f2c6451664ddf2c6668064be016732a4b0a965357517e39fd62

Aliases

arxiv: 1801.02439 · arxiv_version: 1801.02439v3 · doi: 10.48550/arxiv.1801.02439 · pith_short_12: YGSMBPE5EUHS · pith_short_16: YGSMBPE5EUHSYZCR · pith_short_8: YGSMBPE5

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/YGSMBPE5EUHSYZCRMZG56LDGNA \
  | 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: c1a4c0bc9d250f2c6451664ddf2c6668064be016732a4b0a965357517e39fd62

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6c68b4def910c4240a0c69c39c1445628a37054179fbad8f3a60871d7bbab3ab",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CV",
    "submitted_at": "2018-01-08T14:30:21Z",
    "title_canon_sha256": "58d08d7f8c42425c24106fd15c174f637d988cc4f42e5f8eeb7c599dc96045c5"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1801.02439",
    "kind": "arxiv",
    "version": 3
  }
}