Pith Number

pith:IQL2A3G2

pith:2026:IQL2A3G2HNE2TGZ5AYZCUG2AGS

not attested not anchored not stored refs pending

HiERO-StepG @ Ego4D Step Grounding Challenge: hierarchical activity understanding enables zero-shot step grounding

Andrea Zenotto, Francesca Pistilli, Giuseppe Averta, Simone Alberto Peirone

arxiv:2605.31227 v1 · 2026-05-29 · 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{IQL2A3G2HNE2TGZ5AYZCUG2AGS}

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	2026-06-01T01:04:04.970822Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

4417a06cda3b49a99b3d06322a1b40349ef6b1cda64f82c842f5811096df7c08

Aliases

arxiv: 2605.31227 · arxiv_version: 2605.31227v1 · doi: 10.48550/arxiv.2605.31227 · pith_short_12: IQL2A3G2HNE2 · pith_short_16: IQL2A3G2HNE2TGZ5 · pith_short_8: IQL2A3G2

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/IQL2A3G2HNE2TGZ5AYZCUG2AGS \
  | 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: 4417a06cda3b49a99b3d06322a1b40349ef6b1cda64f82c842f5811096df7c08

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "312a800da906f1850cd443c27132c94915356df261cf08f39c86edc4f4aa4f38",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CV",
    "submitted_at": "2026-05-29T12:30:53Z",
    "title_canon_sha256": "1562727769a5036d26e2784528b99d0fa8596eced0beb18c068e2aaee0dba892"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2605.31227",
    "kind": "arxiv",
    "version": 1
  }
}