Pith Number

pith:V4YORA2S

pith:2015:V4YORA2SGKBUBTEJL36BB65CDI

not attested not anchored not stored refs pending

Unsupervised Discovery of Linguistic Structure Including Two-level Acoustic Patterns Using Three Cascaded Stages of Iterative Optimization

Cheng-Tao Chung, Chun-an Chan, Lin-shan Lee

arxiv:1509.02208 v1 · 2015-09-07 · cs.CL

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{V4YORA2SGKBUBTEJL36BB65CDI}

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	2026-05-18T01:33:41.488148Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

af30e88352328340cc895efc10fba21a07ae4b1cd12437ab8fb131fe70a74850

Aliases

arxiv: 1509.02208 · arxiv_version: 1509.02208v1 · doi: 10.48550/arxiv.1509.02208 · pith_short_12: V4YORA2SGKBU · pith_short_16: V4YORA2SGKBUBTEJ · pith_short_8: V4YORA2S

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/V4YORA2SGKBUBTEJL36BB65CDI \
  | 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: af30e88352328340cc895efc10fba21a07ae4b1cd12437ab8fb131fe70a74850

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "985cfbc879595e6678436df3a6e4814b2ac9e9185e982d07da001161211deb16",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CL",
    "submitted_at": "2015-09-07T22:23:01Z",
    "title_canon_sha256": "6a215e9c5cd992b964ee9ea25af5cc54658d4d03a68cfe6915713f2120cc4c3a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1509.02208",
    "kind": "arxiv",
    "version": 1
  }
}