Pith Number

pith:FID6V6SA

pith:2019:FID6V6SAU4T24VKEFZILCFA766

not attested not anchored not stored refs pending

Learnable Tree Filter for Structure-preserving Feature Transform

Gang Yu, Hongbin Sun, Jian Sun, Lin Song, Nanning Zheng, Yanwei Li, Zeming Li

arxiv:1909.12513 v1 · 2019-09-27 · cs.CV · cs.LG

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{FID6V6SAU4T24VKEFZILCFA766}

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	2026-07-05T00:07:40.515868Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2a07eafa40a727ae55442e50b1141ff789a13bb9470a421b5b7af290a9d1db19

Aliases

arxiv: 1909.12513 · arxiv_version: 1909.12513v1 · doi: 10.48550/arxiv.1909.12513 · pith_short_12: FID6V6SAU4T2 · pith_short_16: FID6V6SAU4T24VKE · pith_short_8: FID6V6SA

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/FID6V6SAU4T24VKEFZILCFA766 \
  | 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: 2a07eafa40a727ae55442e50b1141ff789a13bb9470a421b5b7af290a9d1db19

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c8f3ca12b0b0ae409b973f274686ee229b8bdf59441a2afa44708152ce140258",
    "cross_cats_sorted": [
      "cs.LG"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CV",
    "submitted_at": "2019-09-27T06:36:39Z",
    "title_canon_sha256": "fe269c19f4e944990af4363f1e3840146546f4921c95acc03e67d6bb092d4a27"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1909.12513",
    "kind": "arxiv",
    "version": 1
  }
}