Pith Number

pith:QR4QWWAA

pith:2017:QR4QWWAAOZKYIODIXBCE7QC2RD

not attested not anchored not stored refs pending

Predicting Floor-Level for 911 Calls with Neural Networks and Smartphone Sensor Data

Henning Schulzrinne, William Falcon

arxiv:1710.11122 v4 · 2017-10-29 · cs.CY · 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{QR4QWWAAOZKYIODIXBCE7QC2RD}

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	2026-05-18T00:05:39.582824Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

84790b58007655843868b8444fc05a88c55097bd44b38672fe0233c7438857cc

Aliases

arxiv: 1710.11122 · arxiv_version: 1710.11122v4 · doi: 10.48550/arxiv.1710.11122 · pith_short_12: QR4QWWAAOZKY · pith_short_16: QR4QWWAAOZKYIODI · pith_short_8: QR4QWWAA

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/QR4QWWAAOZKYIODIXBCE7QC2RD \
  | 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: 84790b58007655843868b8444fc05a88c55097bd44b38672fe0233c7438857cc

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c7506ca3cf3f769bf17b52805ac04cfad785db6c5bacca414c42bed3956f6932",
    "cross_cats_sorted": [
      "cs.LG"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CY",
    "submitted_at": "2017-10-29T02:04:31Z",
    "title_canon_sha256": "e06041e1f418d1fc69ff6f5a58881946f47d6ea0925c42258fedaa16e7c18a16"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1710.11122",
    "kind": "arxiv",
    "version": 4
  }
}