Pith Number

pith:WQ3K4VBF

pith:2021:WQ3K4VBFSYQRDOAG3L742ZLULV

not attested not anchored not stored refs pending

Learning Descriptor of Constrained Task from Demonstration

Justus Piater, Matteo Saveriano, Xiang Zhang

arxiv:2103.09465 v1 · 2021-03-17 · 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{WQ3K4VBFSYQRDOAG3L742ZLULV}

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	2026-07-05T02:24:03.895815Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b436ae5425962111b806daffcd65745d66a241a7ce65042d0c7d5ce6b8f13087

Aliases

arxiv: 2103.09465 · arxiv_version: 2103.09465v1 · doi: 10.48550/arxiv.2103.09465 · pith_short_12: WQ3K4VBFSYQR · pith_short_16: WQ3K4VBFSYQRDOAG · pith_short_8: WQ3K4VBF

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/WQ3K4VBFSYQRDOAG3L742ZLULV \
  | 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: b436ae5425962111b806daffcd65745d66a241a7ce65042d0c7d5ce6b8f13087

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "56e07bae10a2dca2d7bdbf704f3518cf7b76dcebab7247a10415d817f1608b86",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.RO",
    "submitted_at": "2021-03-17T06:44:29Z",
    "title_canon_sha256": "845b001d34874d05825fa831c8c0da77455dac5cf27965a3d5c38709ec253c84"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2103.09465",
    "kind": "arxiv",
    "version": 1
  }
}