Pith Number

pith:E2SDJAU5

pith:2021:E2SDJAU5BNDE2GLOYPSERDLNF6

not attested not anchored not stored refs pending

Pixel Difference Networks for Efficient Edge Detection

Dewen Hu, Li Liu, Matti Pietik\"ainen, Qing Liao, Qi Tian, Wenzhe Liu, Zhuo Su, Zitong Yu

arxiv:2108.07009 v1 · 2021-08-16 · 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{E2SDJAU5BNDE2GLOYPSERDLNF6}

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	2026-07-05T03:06:00.023270Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

26a434829d0b464d196ec3e4488d6d2fa4f0e3c4c339d499cf62e3fe3c7ca20f

Aliases

arxiv: 2108.07009 · arxiv_version: 2108.07009v1 · doi: 10.48550/arxiv.2108.07009 · pith_short_12: E2SDJAU5BNDE · pith_short_16: E2SDJAU5BNDE2GLO · pith_short_8: E2SDJAU5

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/E2SDJAU5BNDE2GLOYPSERDLNF6 \
  | 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: 26a434829d0b464d196ec3e4488d6d2fa4f0e3c4c339d499cf62e3fe3c7ca20f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9ef54596836528934ddb484db0292a325f1d0420432a6b27eb9f5ece0d6f34e8",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CV",
    "submitted_at": "2021-08-16T10:42:59Z",
    "title_canon_sha256": "51319760225b7d0e1fe86d671b3c604315fb5f0ebc2df144f455747a3e2c7bbf"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2108.07009",
    "kind": "arxiv",
    "version": 1
  }
}