Pith Number

pith:OCQIHQ3B

pith:2025:OCQIHQ3BTMUIXQELMHEUFA4DMU

not attested not anchored not stored refs pending

A2-GNN: Angle-Annular GNN for Visual Descriptor-free Camera Relocalization

Juho Kannala, Shuzhe Wang, Yejun Zhang

arxiv:2502.20036 v1 · 2025-02-27 · 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{OCQIHQ3BTMUIXQELMHEUFA4DMU}

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	2026-07-05T10:20:57.051189Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

70a083c3619b288bc08b61c9428383650e673324af68dd68ee12ed144bc185da

Aliases

arxiv: 2502.20036 · arxiv_version: 2502.20036v1 · doi: 10.48550/arxiv.2502.20036 · pith_short_12: OCQIHQ3BTMUI · pith_short_16: OCQIHQ3BTMUIXQEL · pith_short_8: OCQIHQ3B

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/OCQIHQ3BTMUIXQELMHEUFA4DMU \
  | 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: 70a083c3619b288bc08b61c9428383650e673324af68dd68ee12ed144bc185da

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f4ae661b0c9c5b803590de88051f81c4fc494fb60d4d5b0514e917e2984ed289",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.CV",
    "submitted_at": "2025-02-27T12:25:30Z",
    "title_canon_sha256": "11dbc19187ec8e605f43045a844b2c6c1840442543cdc493a72f1e5671ee4bb2"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2502.20036",
    "kind": "arxiv",
    "version": 1
  }
}