Pith Number

pith:S2ALH6ZK

pith:2015:S2ALH6ZKQPKYHKSZS3FC5E63VX

not attested not anchored not stored refs pending

Shadow Optimization from Structured Deep Edge Detection

Karianto Leman, Li Shen, Teck Wee Chua

arxiv:1505.01589 v2 · 2015-05-07 · 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{S2ALH6ZKQPKYHKSZS3FC5E63VX}

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	2026-05-18T02:16:38.772025Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

9680b3fb2a83d583aa5996ca2e93dbadc6e4a8fdcae88403fea4d8f73e30d19f

Aliases

arxiv: 1505.01589 · arxiv_version: 1505.01589v2 · doi: 10.48550/arxiv.1505.01589 · pith_short_12: S2ALH6ZKQPKY · pith_short_16: S2ALH6ZKQPKYHKSZ · pith_short_8: S2ALH6ZK

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/S2ALH6ZKQPKYHKSZS3FC5E63VX \
  | 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: 9680b3fb2a83d583aa5996ca2e93dbadc6e4a8fdcae88403fea4d8f73e30d19f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5b1b69f5d295c716c933b9747d3fd60eaf96ebaf8721306cda0cbcf1ebdf71bb",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by-nc-sa/3.0/",
    "primary_cat": "cs.CV",
    "submitted_at": "2015-05-07T05:07:11Z",
    "title_canon_sha256": "fbdeb125ac71a17574a56ddd01d80d9205a3ec92aacc213e25711edba5c99b68"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1505.01589",
    "kind": "arxiv",
    "version": 2
  }
}