Pith Number

pith:P2WB2OO3

pith:2018:P2WB2OO3FRW6U77Z5TRISN4IHG

not attested not anchored not stored refs pending

Learning 3D Segment Descriptors for Place Recognition

Andrei Cramariuc, Hannes Sommer, Igor Gilitschenski, Renaud Dub\'e, Roland Siegwart

arxiv:1804.09270 v1 · 2018-04-24 · 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{P2WB2OO3FRW6U77Z5TRISN4IHG}

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	2026-05-18T00:17:32.314199Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7eac1d39db2c6dea7ff9ece289378839b19351754fa97c4876f314b2b91e9b55

Aliases

arxiv: 1804.09270 · arxiv_version: 1804.09270v1 · doi: 10.48550/arxiv.1804.09270 · pith_short_12: P2WB2OO3FRW6 · pith_short_16: P2WB2OO3FRW6U77Z · pith_short_8: P2WB2OO3

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/P2WB2OO3FRW6U77Z5TRISN4IHG \
  | 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: 7eac1d39db2c6dea7ff9ece289378839b19351754fa97c4876f314b2b91e9b55

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "77ca4402472293e21f206378c10ed7d225d7eb13cde51ebfa931f69c6d31b632",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.RO",
    "submitted_at": "2018-04-24T21:51:13Z",
    "title_canon_sha256": "81179bd7058ff06276e141f14f07441bc1a8a38d03b66c5d0acf87833b9c042b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1804.09270",
    "kind": "arxiv",
    "version": 1
  }
}