Pith Number

pith:33JAM7KL

pith:2021:33JAM7KL3NAEICFMY3BNNBQVCM

not attested not anchored not stored refs pending

Topic Classification on Spoken Documents Using Deep Acoustic and Linguistic Features

Bin Gu, Tan Liu, Wu Guo

arxiv:2106.08637 v1 · 2021-06-16 · cs.CL · cs.SD · eess.AS

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{33JAM7KL3NAEICFMY3BNNBQVCM}

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	2026-07-05T02:50:00.142725Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ded2067d4bdb404408acc6c2d68615133e5ffb2c09d475cb4e3451c8de4e9a0d

Aliases

arxiv: 2106.08637 · arxiv_version: 2106.08637v1 · doi: 10.48550/arxiv.2106.08637 · pith_short_12: 33JAM7KL3NAE · pith_short_16: 33JAM7KL3NAEICFM · pith_short_8: 33JAM7KL

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/33JAM7KL3NAEICFMY3BNNBQVCM \
  | 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: ded2067d4bdb404408acc6c2d68615133e5ffb2c09d475cb4e3451c8de4e9a0d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "45a56d1d2b9364fa45e309163c68acbf7743a9630d0b9264529c1edd810eb49c",
    "cross_cats_sorted": [
      "cs.SD",
      "eess.AS"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CL",
    "submitted_at": "2021-06-16T08:54:31Z",
    "title_canon_sha256": "2d26584d221e9c47bc2cf7bfa48fc7ecdf2b00b3163eddbad4739dc8cf1eedc2"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2106.08637",
    "kind": "arxiv",
    "version": 1
  }
}