Pith Number

pith:ILXIWMKS

pith:2019:ILXIWMKSCEBCD2KMJFPVAKK7AI

not attested not anchored not stored refs pending

3D Local Features for Direct Pairwise Registration

Haowen Deng, Slobodan Ilic, Tolga Birdal

arxiv:1904.04281 v1 · 2019-04-08 · cs.CV · cs.AI · cs.LG · cs.RO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{ILXIWMKSCEBCD2KMJFPVAKK7AI}

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	2026-05-17T23:48:59.410108Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

42ee8b3152110221e94c495f50295f021843041fc535d263432771fd9b54b0c6

Aliases

arxiv: 1904.04281 · arxiv_version: 1904.04281v1 · doi: 10.48550/arxiv.1904.04281 · pith_short_12: ILXIWMKSCEBC · pith_short_16: ILXIWMKSCEBCD2KM · pith_short_8: ILXIWMKS

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/ILXIWMKSCEBCD2KMJFPVAKK7AI \
  | 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: 42ee8b3152110221e94c495f50295f021843041fc535d263432771fd9b54b0c6

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e0f8493434a014b61413c0e7630245b72b00ba9cb491218bc9c84590cf4fa389",
    "cross_cats_sorted": [
      "cs.AI",
      "cs.LG",
      "cs.RO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CV",
    "submitted_at": "2019-04-08T18:17:36Z",
    "title_canon_sha256": "146947ef8576b844e8c90552c789f50d523a2a10c833aea2902efc29bf4db59c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1904.04281",
    "kind": "arxiv",
    "version": 1
  }
}