Pith Number

pith:KKB6AFME

pith:2019:KKB6AFMEW4D5JHKV6PJOZWYZQO

not attested not anchored not stored refs pending

Data mining Mandarin tone contour shapes

Shuo Zhang

arxiv:1907.01668 v1 · 2019-07-02 · 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{KKB6AFMEW4D5JHKV6PJOZWYZQO}

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	2026-05-17T23:41:35.553680Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

5283e01584b707d49d55f3d2ecdb19838999eee0a48f0fe401f5ba1e84ac9e63

Aliases

arxiv: 1907.01668 · arxiv_version: 1907.01668v1 · doi: 10.48550/arxiv.1907.01668 · pith_short_12: KKB6AFMEW4D5 · pith_short_16: KKB6AFMEW4D5JHKV · pith_short_8: KKB6AFME

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/KKB6AFMEW4D5JHKV6PJOZWYZQO \
  | 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: 5283e01584b707d49d55f3d2ecdb19838999eee0a48f0fe401f5ba1e84ac9e63

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1f39eb1800ebe5f1ac04af1b2ad64d94abcf60205c572fc835f7c84a30ad7ab9",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CL",
    "submitted_at": "2019-07-02T22:29:53Z",
    "title_canon_sha256": "6b4464ad5fef346d5c195456f1ec21c701281076035bffa69354b64b3492a8bf"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1907.01668",
    "kind": "arxiv",
    "version": 1
  }
}