Pith Number

pith:LU5FA7WY

pith:2026:LU5FA7WY6BRQXRTT2PFNAZGWDD

not attested not anchored not stored refs pending

ActivityNarrated: An Open-Ended Narrative Paradigm for Wearable Human Activity Understanding

Alcina Pinto, Bo Zhou, Daniel Geissler, Deepika Gurung, Lala Shakti Swarup Ray, Mengxi Liu, Paul Lukowoicz

arxiv:2604.00767 v2 · 2026-04-01 · cs.LG

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{LU5FA7WY6BRQXRTT2PFNAZGWDD}

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	2026-07-02T01:18:07.848224Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

5d3a507ed8f0630bc673d3cad064d618d4cc8d41f876a10bdaeebd8605ca6aae

Aliases

arxiv: 2604.00767 · arxiv_version: 2604.00767v2 · doi: 10.48550/arxiv.2604.00767 · pith_short_12: LU5FA7WY6BRQ · pith_short_16: LU5FA7WY6BRQXRTT · pith_short_8: LU5FA7WY

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/LU5FA7WY6BRQXRTT2PFNAZGWDD \
  | 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: 5d3a507ed8f0630bc673d3cad064d618d4cc8d41f876a10bdaeebd8605ca6aae

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "478d7e40f7e0859ef4ea2cd1e5bb1819a3d354b69376dc07a43f8737ca169a28",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.LG",
    "submitted_at": "2026-04-01T11:31:44Z",
    "title_canon_sha256": "1bb1114b0c0d8ecf0523274ae0b9c5057a0467e430f5c48341a5b2f6f20816e7"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2604.00767",
    "kind": "arxiv",
    "version": 2
  }
}