Pith Number

pith:H3N2Z25T

pith:2018:H3N2Z25TDG4KG2EZMHUWZRW7DB

not attested not anchored not stored refs pending

Room Recognition Using Discriminative Ensemble Learning with Hidden Markov Models for Smartphones

Jose Luis Carrera V., Torsten Braun, Zhongliang Zhao

arxiv:1804.09005 v1 · 2018-04-24 · cs.NI

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{H3N2Z25TDG4KG2EZMHUWZRW7DB}

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	2026-05-18T00:17:36.612774Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3edbacebb319b8a3689961e96cc6df18479c438287961bf149cc27eef235444c

Aliases

arxiv: 1804.09005 · arxiv_version: 1804.09005v1 · doi: 10.48550/arxiv.1804.09005 · pith_short_12: H3N2Z25TDG4K · pith_short_16: H3N2Z25TDG4KG2EZ · pith_short_8: H3N2Z25T

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/H3N2Z25TDG4KG2EZMHUWZRW7DB \
  | 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: 3edbacebb319b8a3689961e96cc6df18479c438287961bf149cc27eef235444c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e8fe49926847040cdd44ae2c983274e0e18aee9d613b4bb6d604ec8bbaf0ed02",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.NI",
    "submitted_at": "2018-04-24T13:20:18Z",
    "title_canon_sha256": "b90c63bf6399e3cad419ba8de5a6600be6a84ca4aaabd5a08c8671233d21c4d1"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1804.09005",
    "kind": "arxiv",
    "version": 1
  }
}