Pith Number

pith:66Q775GP

pith:2026:66Q775GPMETHI47KQWRU6ACBGQ

not attested not anchored not stored refs pending

SKETCH: Semantic Key-Point Conditioning for Long-Horizon Vessel Trajectory Prediction

Enmei Tu, Jianhua Z. Huang, Linyong Gan, Shuhang Chen, Wenxin Xu, Xingjian Li, Zimo Li

arxiv:2601.18537 v3 · 2026-01-26 · cs.RO · cs.AI

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{66Q775GPMETHI47KQWRU6ACBGQ}

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	2026-06-01T01:02:30.313445Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f7a1fff4cf61267473ea85a34f0041340e9fb183126ecadcc40489a3c11f5291

Aliases

arxiv: 2601.18537 · arxiv_version: 2601.18537v3 · doi: 10.48550/arxiv.2601.18537 · pith_short_12: 66Q775GPMETH · pith_short_16: 66Q775GPMETHI47K · pith_short_8: 66Q775GP

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/66Q775GPMETHI47KQWRU6ACBGQ \
  | 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: f7a1fff4cf61267473ea85a34f0041340e9fb183126ecadcc40489a3c11f5291

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "606fbdeed079b9e0eb3e847e31224c27f83b4fd6ab4c1d5baca2a41eb263f6e4",
    "cross_cats_sorted": [
      "cs.AI"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.RO",
    "submitted_at": "2026-01-26T14:42:31Z",
    "title_canon_sha256": "3ee4e85d7f6436516b3780886619cfc0a0fce018a2b661e5abddc10ee52572a6"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2601.18537",
    "kind": "arxiv",
    "version": 3
  }
}