Pith Number

pith:QM4JJ4PS

pith:2017:QM4JJ4PSUXB2QYL7KUEEJZIHBY

not attested not anchored not stored refs pending

Extracting Point of Interest and Classifying Environment for Low Sampling Crowd Sensing Smartphone Sensor Data

Balasubramaniam Thirunavukarasu, Belinda Yuen, Billy Pik Lik Lau, Chau Yuen, Marakkalage Sumudu Hasala, Richi Nayak, Viswanath Sanjana Kadaba

arxiv:1701.03379 v1 · 2017-01-06 · cs.CY

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{QM4JJ4PSUXB2QYL7KUEEJZIHBY}

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	2026-05-18T00:52:56.001341Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

833894f1f2a5c3a8617f550844e5070e234eac5a5b6ceb04f767f4f8c998b6f1

Aliases

arxiv: 1701.03379 · arxiv_version: 1701.03379v1 · doi: 10.48550/arxiv.1701.03379 · pith_short_12: QM4JJ4PSUXB2 · pith_short_16: QM4JJ4PSUXB2QYL7 · pith_short_8: QM4JJ4PS

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/QM4JJ4PSUXB2QYL7KUEEJZIHBY \
  | 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: 833894f1f2a5c3a8617f550844e5070e234eac5a5b6ceb04f767f4f8c998b6f1

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d927aefab159546ba6cae2977d715e42a68cd4c1297c80a51087f42dd9dbbc97",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CY",
    "submitted_at": "2017-01-06T02:09:54Z",
    "title_canon_sha256": "aabf082d0955210ffeaaaeedfdede73cd885a085445e53464491acb7390b0a28"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1701.03379",
    "kind": "arxiv",
    "version": 1
  }
}