Pith Number

pith:PUJWRXQ6

pith:2021:PUJWRXQ6PSPQKIQER3B4P4BM4L

not attested not anchored not stored refs pending

Why KDAC? A general activation function for knowledge discovery

Dong Gao, Fanglin Liu, Haozhe Liu, Zhenhua Wang

arxiv:2111.13858 v4 · 2021-11-27 · cs.LG · cs.CL · cs.NE

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{PUJWRXQ6PSPQKIQER3B4P4BM4L}

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	2026-07-05T04:25:49.734277Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7d1368de1e7c9f0522048ec3c7f02ce2e3ee7db2482d0f93fcabb22e87df341a

Aliases

arxiv: 2111.13858 · arxiv_version: 2111.13858v4 · doi: 10.48550/arxiv.2111.13858 · pith_short_12: PUJWRXQ6PSPQ · pith_short_16: PUJWRXQ6PSPQKIQE · pith_short_8: PUJWRXQ6

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/PUJWRXQ6PSPQKIQER3B4P4BM4L \
  | 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: 7d1368de1e7c9f0522048ec3c7f02ce2e3ee7db2482d0f93fcabb22e87df341a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "53a78b94c0f5aa783b90fd8cd2373ab8fbc0d9389feebd515bed34c805c5b9fb",
    "cross_cats_sorted": [
      "cs.CL",
      "cs.NE"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.LG",
    "submitted_at": "2021-11-27T10:05:12Z",
    "title_canon_sha256": "1d5a1406f8c279cd9e5f87178a18277f9d127809004fbf82e4e867c183a5cc7e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2111.13858",
    "kind": "arxiv",
    "version": 4
  }
}