Pith Number

pith:4FHHH3WZ

pith:2026:4FHHH3WZ4MIVBNXN2MYS7TTRTX

not attested not anchored not stored refs pending

SPARC: Reliable Spatial Annotations from Robot Demonstrations at Scale

Jakub Suliga, Maximilian Xiling Li, Moritz Reuss, Nils Blank, Pankhuri Vanjani, Paul Mattes, Rudolf Lioutikov, Thomas Roth

arxiv:2606.13497 v1 · 2026-06-11 · cs.RO · 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{4FHHH3WZ4MIVBNXN2MYS7TTRTX}

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	2026-06-12T01:10:06.825333Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e14e73eed9e31150b6edd3312fce719dcdb8fec43f1b816c262fed282f051610

Aliases

arxiv: 2606.13497 · arxiv_version: 2606.13497v1 · doi: 10.48550/arxiv.2606.13497 · pith_short_12: 4FHHH3WZ4MIV · pith_short_16: 4FHHH3WZ4MIVBNXN · pith_short_8: 4FHHH3WZ

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/4FHHH3WZ4MIVBNXN2MYS7TTRTX \
  | 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: e14e73eed9e31150b6edd3312fce719dcdb8fec43f1b816c262fed282f051610

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3c422453e81e45db8c90e0a037d94f82aa1d60981508689ecaa280f7f0845fa9",
    "cross_cats_sorted": [
      "cs.CV"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.RO",
    "submitted_at": "2026-06-11T15:46:28Z",
    "title_canon_sha256": "26c1b857f2d060b2de31593c05ab2ee230cbff87ea93cf535769fb6d42d3c014"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2606.13497",
    "kind": "arxiv",
    "version": 1
  }
}