Pith Number

pith:54NNLI4K

pith:2021:54NNLI4KDAVY5M3X4LD4SKCM6V

not attested not anchored not stored refs pending

EnHMM: On the Use of Ensemble HMMs and Stack Traces to Predict the Reassignment of Bug Report Fields

Abdelwahab Hamou-Lhadj, Haipeng Cai, Korosh K. Sabor, Md Shariful Islam, Mohammad Hamdaqa

arxiv:2103.08083 v1 · 2021-03-15 · cs.SE · 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{54NNLI4KDAVY5M3X4LD4SKCM6V}

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	2026-07-05T02:22:47.743530Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ef1ad5a38a182b8eb377e2c7c9284cf548589a599e8261b488a2b1195390dafa

Aliases

arxiv: 2103.08083 · arxiv_version: 2103.08083v1 · doi: 10.48550/arxiv.2103.08083 · pith_short_12: 54NNLI4KDAVY · pith_short_16: 54NNLI4KDAVY5M3X · pith_short_8: 54NNLI4K

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/54NNLI4KDAVY5M3X4LD4SKCM6V \
  | 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: ef1ad5a38a182b8eb377e2c7c9284cf548589a599e8261b488a2b1195390dafa

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2c49af99e5eb34b8b6420c1c4ec6017707a2d7cbd7453b0eb46aff54e4c359c5",
    "cross_cats_sorted": [
      "cs.AI"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.SE",
    "submitted_at": "2021-03-15T01:00:45Z",
    "title_canon_sha256": "b40155fca15bbdaf4134c6f26099fa47fe223aa296cc45c646591294ac876186"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2103.08083",
    "kind": "arxiv",
    "version": 1
  }
}