Pith Number

pith:Q4GHCXMG

pith:2012:Q4GHCXMGBL6IE4BE4U6FMCP7LP

not attested not anchored not stored refs pending

Recognizing Activities and Spatial Context Using Wearable Sensors

Alvin Raj, Amarnag Subramanya, Dieter Fox, Jeff A. Bilmes

arxiv:1206.6869 v1 · 2012-06-27 · cs.AI

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{Q4GHCXMGBL6IE4BE4U6FMCP7LP}

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	2026-05-18T03:52:15.363436Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

870c715d860afc827024e53c5609ff5bd518a6b2424328b6f51c556faa01bc37

Aliases

arxiv: 1206.6869 · arxiv_version: 1206.6869v1 · doi: 10.48550/arxiv.1206.6869 · pith_short_12: Q4GHCXMGBL6I · pith_short_16: Q4GHCXMGBL6IE4BE · pith_short_8: Q4GHCXMG

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/Q4GHCXMGBL6IE4BE4U6FMCP7LP \
  | 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: 870c715d860afc827024e53c5609ff5bd518a6b2424328b6f51c556faa01bc37

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "28e7013a62eae93b9bfbbc138b1acfce555a87fa2fcf753d57596e4ccae8bb7d",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.AI",
    "submitted_at": "2012-06-27T16:29:30Z",
    "title_canon_sha256": "694c6bf514bbd3ea3a8a2f5970ea21fbaa1cc584c5aca5969e7de98d2c965106"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1206.6869",
    "kind": "arxiv",
    "version": 1
  }
}