Pith Number

pith:W4K7GABF

pith:2015:W4K7GABFILFF3DNPR4Z4VLA77G

not attested not anchored not stored refs pending

DeepWriterID: An End-to-end Online Text-independent Writer Identification System

Lianwen Jin, Manfei Liu, Weixin Yang

arxiv:1508.04945 v2 · 2015-08-20 · cs.CV · cs.LG · stat.ML

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{W4K7GABFILFF3DNPR4Z4VLA77G}

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	2026-05-18T01:23:55.727438Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b715f3002542ca5d8daf8f33caac1ff98c0cc827f3554fb4729f2e69e320c9d0

Aliases

arxiv: 1508.04945 · arxiv_version: 1508.04945v2 · doi: 10.48550/arxiv.1508.04945 · pith_short_12: W4K7GABFILFF · pith_short_16: W4K7GABFILFF3DNP · pith_short_8: W4K7GABF

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/W4K7GABFILFF3DNPR4Z4VLA77G \
  | 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: b715f3002542ca5d8daf8f33caac1ff98c0cc827f3554fb4729f2e69e320c9d0

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "882d9373289f15e4b99217003abbc8c08a6dcf6552316ef3f7133d8e251af483",
    "cross_cats_sorted": [
      "cs.LG",
      "stat.ML"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CV",
    "submitted_at": "2015-08-20T10:39:19Z",
    "title_canon_sha256": "9b1b3ee734677890e00bfc2d22959ac0f55b68a9387b95670560462a7d3ed3f3"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1508.04945",
    "kind": "arxiv",
    "version": 2
  }
}