Pith Number

pith:4H67GV32

pith:2017:4H67GV32TTLKQHKYXOPBTC2MXN

not attested not anchored not stored refs pending

Knock-Knock: Acoustic Object Recognition by using Stacked Denoising Autoencoders

Hongbin Liu, Kaspar Althoefer, Leqi Zhu, Shan Luo

arxiv:1708.04432 v1 · 2017-08-15 · cs.CV

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{4H67GV32TTLKQHKYXOPBTC2MXN}

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	2026-05-18T00:37:59.350563Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e1fdf3577a9cd6a81d58bb9e198b4cbb6a0fb0b2e0b35af93dcd9f1bc46742ed

Aliases

arxiv: 1708.04432 · arxiv_version: 1708.04432v1 · doi: 10.48550/arxiv.1708.04432 · pith_short_12: 4H67GV32TTLK · pith_short_16: 4H67GV32TTLKQHKY · pith_short_8: 4H67GV32

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/4H67GV32TTLKQHKYXOPBTC2MXN \
  | 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: e1fdf3577a9cd6a81d58bb9e198b4cbb6a0fb0b2e0b35af93dcd9f1bc46742ed

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "22dc8cd2df4aa2473e5a642d866fb5ffe32507191ee28c5f537c47a92780b91b",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CV",
    "submitted_at": "2017-08-15T08:40:02Z",
    "title_canon_sha256": "bcd61acc8dcc48cffd5c14fc4c0b0719df422c6cf14fbf96d552688c3af30d3e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1708.04432",
    "kind": "arxiv",
    "version": 1
  }
}