Pith Number

pith:XK2VS4VX

pith:2026:XK2VS4VXHCRQLAB2ACESNAZQ6D

not attested not anchored not stored refs pending

Semi-Dense Matching Uncertainty Is Not Just Local Confidence

Hai Tran, Hoang-Tuan Nguyen, Huong Ninh, Khoa Hoang, Long Q. Tran

arxiv:2608.08685 v1 · 2026-08-09 · 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{XK2VS4VXHCRQLAB2ACESNAZQ6D}

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	2026-08-11T01:25:00.257380Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

bab55972b738a305803a0089268330f0e488e627e32b378d45d4a6525493cf49

Aliases

arxiv: 2608.08685 · arxiv_version: 2608.08685v1 · doi: 10.48550/arxiv.2608.08685 · pith_short_12: XK2VS4VXHCRQ · pith_short_16: XK2VS4VXHCRQLAB2 · pith_short_8: XK2VS4VX

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/XK2VS4VXHCRQLAB2ACESNAZQ6D \
  | 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: bab55972b738a305803a0089268330f0e488e627e32b378d45d4a6525493cf49

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d88168f3b2bf1667110b40663e7538dd0cc6645a764b82a84795448430e43315",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CV",
    "submitted_at": "2026-08-09T13:01:20Z",
    "title_canon_sha256": "dcc7b23fefd5aa9eb6cd5fc941f9c2900b9c4b531e90c3460e33093ac3f10bdb"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2608.08685",
    "kind": "arxiv",
    "version": 1
  }
}