Pith Number

pith:AMUD64RX

pith:2019:AMUD64RXN4KX4VBK7PFUNFVV5J

not attested not anchored not stored refs pending

Activity Classification Using Smartphone Gyroscope and Accelerometer Data

Emily Huang, Jukka-Pekka Onnela

arxiv:1903.12616 v1 · 2019-03-20 · 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{AMUD64RXN4KX4VBK7PFUNFVV5J}

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	2026-05-17T23:49:53.610679Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

03283f72376f157e542afbcb4696b5ea516f9d784796726fc5242cc6ca589bc3

Aliases

arxiv: 1903.12616 · arxiv_version: 1903.12616v1 · doi: 10.48550/arxiv.1903.12616 · pith_short_12: AMUD64RXN4KX · pith_short_16: AMUD64RXN4KX4VBK · pith_short_8: AMUD64RX

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/AMUD64RXN4KX4VBK7PFUNFVV5J \
  | 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: 03283f72376f157e542afbcb4696b5ea516f9d784796726fc5242cc6ca589bc3

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "83bb6ab2e1872f4536cba31a1642ba01717f5262fe2f827fa3fdc6b2cce58e32",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.HC",
    "submitted_at": "2019-03-20T14:23:33Z",
    "title_canon_sha256": "7bc2feb764cb48bc50030cf9865dddbb0a25920d25a0597af24a1eff4ec05acf"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1903.12616",
    "kind": "arxiv",
    "version": 1
  }
}