Pith Number

pith:HPV6R5XB

pith:2025:HPV6R5XBDBL64MAL4JS65UFWWW

not attested not anchored not stored refs pending

MemPal: Leveraging Multimodal AI and LLMs for Voice-Activated Object Retrieval in Homes of Older Adults

Christine Xu, Natasha Maniar, Pattie Maes, Samantha W.T. Chan, Scott Ren, Wazeer Zulfikar

arxiv:2502.01801 v1 · 2025-02-03 · cs.HC

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{HPV6R5XBDBL64MAL4JS65UFWWW}

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	2026-07-05T10:09:19.374699Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3bebe8f6e11857ee300be265eed0b6b5805e0abfe31a6d63c3b1c6baffa2bf55

Aliases

arxiv: 2502.01801 · arxiv_version: 2502.01801v1 · doi: 10.48550/arxiv.2502.01801 · pith_short_12: HPV6R5XBDBL6 · pith_short_16: HPV6R5XBDBL64MAL · pith_short_8: HPV6R5XB

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/HPV6R5XBDBL64MAL4JS65UFWWW \
  | 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: 3bebe8f6e11857ee300be265eed0b6b5805e0abfe31a6d63c3b1c6baffa2bf55

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9566918f5c9f078d79641268a7356106e734449492b4f8426bdd6491f7f12017",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by-nc-sa/4.0/",
    "primary_cat": "cs.HC",
    "submitted_at": "2025-02-03T20:28:32Z",
    "title_canon_sha256": "e857bc75c00a512097db2affd17f4c70bb34da4d8fc524045208b393c4963adb"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2502.01801",
    "kind": "arxiv",
    "version": 1
  }
}